Rumer Willis and Derek Richard Thomas have been separated since 2024, but their relationship remains the subject of a legal dispute involving their young daughter, Louetta Isley Thomas Willis. The latest development came after Thomas filed a declaration on August 27, 2026, challenging allegations previously made against him and accusing Willis of disrupting his court-ordered parenting time.
The Rumer Willis Derek Richard Thomas dispute has developed into a complicated custody case involving allegations about their former relationship, parenting arrangements and concerns surrounding Thomas’ alleged marijuana use. Both sides have offered conflicting accounts, and the allegations should not be confused with findings that have been legally established.
Key Points Summary
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║ – Rumer Willis and Derek Richard Thomas began their relationship publicly in 2022.
║ – Their daughter, Louetta Isley Thomas Willis, was born in April 2023.
║ – Willis confirmed their separation in August 2024.
║ – Thomas sought custody and visitation through the courts in July 2025.
║ – Willis later raised allegations involving emotional abuse and concerns about Thomas’ alleged marijuana use.
║ – Thomas has denied the allegations and maintains that he can safely care for his daughter.
║ – A June 9, 2026 order gave Willis primary physical custody and established parenting time for Thomas.
║ – Thomas’ latest filing disputes Willis’ claims and alleges interference with his visitation.
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What Is the Latest Rumer Willis Derek Richard Thomas Update?
The newest development in the case comes from Derek Richard Thomas’ August 27, 2026 court declaration.
Thomas disputes allegations previously made by Willis concerning his alleged drug use and parenting. He also claims that Willis has interfered with his ability to exercise parenting time granted under the existing custody order.
His filing asks the court to continue following the custody arrangement established on June 9, 2026. Under that order, Willis has primary physical custody of Louetta, while Thomas has scheduled parenting time.
The case remains contested. Thomas’ allegations against Willis and Willis’ previous allegations against Thomas represent the positions of the two parties in an ongoing family-law dispute.
Rumer Willis and Derek Richard Thomas Relationship Background
Rumer Willis and musician Derek Richard Thomas became publicly linked in 2022. Their relationship attracted attention partly because Willis is the daughter of actors Bruce Willis and Demi Moore.
The couple announced that they were expecting a child after their relationship became public.
Their daughter, Louetta Isley Thomas Willis, was born on April 18, 2023. For a period, Willis and Thomas appeared to be raising their daughter together.
That relationship eventually ended.
In August 2024, Willis confirmed that she and Thomas were no longer a couple. She described herself publicly as a single mother and indicated that the two were continuing to co-parent Louetta.
The situation became significantly more complicated after the two began disagreeing over custody and visitation.
When Did the Custody Dispute Start?
The legal custody dispute became public in July 2025, when Thomas sought custody and visitation involving Louetta.
A major point of disagreement involved Willis’ relocation to Idaho with their daughter. Thomas argued that the move affected his ability to maintain regular contact with Louetta.
Willis disputed parts of Thomas’ account and maintained that she had attempted to facilitate his relationship with their daughter.
The proceedings eventually involved questions concerning both California and Idaho. The Idaho case ended in January 2026, leaving California as the jurisdiction for the continuing custody matter.
The parents also agreed to mediation in September 2025 as an effort to resolve their disagreements outside a prolonged court battle.
Understanding the Derek Richard Thomas Drug Use Claims
The Derek Richard Thomas drug use claims became a major part of the custody dispute after Willis raised concerns about his alleged marijuana use.
According to court filings reported publicly, Willis characterized Thomas’ marijuana use as a concern and sought drug testing. She also alleged that his behavior had at times raised questions about whether he was under the influence while responsible for Louetta.
Those statements came from Willis’ court filings and represent allegations rather than established conclusions.
Thomas has rejected the allegations.
He has denied abusing drugs and disputed the suggestion that marijuana use compromised his ability to care for his daughter. He has maintained that he is a responsible parent and that his relationship with Louetta should not be restricted based on the allegations.
His August 27 filing again addresses the drug-related accusations and rejects the characterization of his conduct presented by Willis.
Are the Drug Use Claims Confirmed?
The available public information does not establish the allegations as proven facts.
The drug-related claims are part of a contested family-court proceeding. Willis has expressed concerns and sought safeguards, while Thomas has denied the accusations.
That distinction is particularly important when discussing allegations made in custody litigation. A claim included in a court document does not by itself constitute a judicial finding.
What Other Allegations Has Rumer Willis Made?
The custody dispute also includes allegations concerning the former couple’s relationship.
Willis has accused Thomas of emotional abuse and coercive behavior. Some of the allegations concern conduct that she says occurred during their relationship and, according to her account, sometimes while Louetta was present.
She has also expressed concerns about Thomas receiving more extensive unsupervised or overnight parenting time.
Willis has sought a custody evaluation as part of the proceedings.
Thomas has denied the allegations made against him and disputes Willis’ description of their past relationship.
Demi Moore has also submitted a declaration supporting her daughter during the dispute. Thomas has challenged aspects of the account presented by Moore.
Because these matters remain contested, they should be described as allegations, denials and court positions rather than established wrongdoing unless a court makes a specific finding.
What Did the June 9, 2026 Custody Order Say?
The June 9, 2026 custody ruling became one of the most important developments in the case.
The order gave Willis primary physical custody of Louetta. Both parents retained joint legal custody, meaning major decisions concerning their daughter remained subject to the shared legal-custody arrangement.
Thomas received scheduled parenting time, with the arrangement beginning with supervision and moving toward unmonitored and overnight visits under the terms of the order.
The parents also agreed to participate in a custody evaluation.
The order did not end the dispute. Instead, disagreements about how the visitation arrangement was being carried out became another source of conflict.
Why Is Visitation Now a Major Issue?
Thomas’ latest filing focuses heavily on his allegations concerning parenting time.
He describes a July 2026 visitation incident in which he says there was a disagreement over the person designated to monitor his visit with Louetta.
According to Thomas’ account, one monitor remained outside with Louetta while another approved monitor was expected to arrive. Thomas says Willis subsequently came to his home with police before the replacement monitor arrived.
He claims that Louetta was taken from his care approximately 40 minutes into the scheduled visit.
Thomas states that police regarded the situation as a civil dispute rather than a criminal matter.
These details come from Thomas’ own court declaration and should therefore be treated as his account of what happened.
He argues that Willis’ actions have interfered with the parenting schedule established by the court.
What Does Thomas Want the Court to Do?
Thomas is opposing efforts to change or vacate the June 9 custody order.
His latest declaration asks that the existing arrangement remain in place. He argues that he should be allowed to exercise the parenting time already established by the court.
Thomas also rejects the allegations that his conduct makes him unsafe as a parent.
His position differs substantially from Willis’ approach. She has raised concerns about his alleged conduct and has sought additional safeguards concerning his parenting time.
The court will ultimately determine how the competing claims affect the custody arrangement.
Rumer Willis Derek Richard Thomas Timeline
November 2022 — Relationship Goes Public
Willis and Derek Richard Thomas became publicly linked in 2022. The couple soon announced that they were expecting their first child together.
April 18, 2023 — Daughter Is Born
Louetta Isley Thomas Willis was born on April 18, 2023.
August 2024 — Separation Confirmed
Willis confirmed that she and Thomas had ended their romantic relationship. She continued to describe the two as co-parents.
July 2025 — Court Custody Proceedings Begin
Thomas sought custody and visitation through the court, beginning the legal dispute that would continue into the following year.
September 2025 — Mediation Effort
The former couple agreed to mediation with a private judge in an attempt to address their custody disagreements.
January 2026 — Idaho Case Ends
The Idaho proceeding came to an end, while California remained central to the ongoing custody case.
May 2026 — Allegations Become Public
Court filings brought allegations involving emotional abuse, coercive behavior and concerns about alleged marijuana use into public attention. Thomas denied the allegations.
June 9, 2026 — Primary Physical Custody Granted to Willis
A Los Angeles judge awarded Willis primary physical custody while the parents retained joint legal custody. Thomas received a defined parenting schedule.
August 27, 2026 — Thomas Responds in Court
Thomas filed a new declaration denying the drug-related allegations and accusing Willis of interfering with his court-ordered parenting time.
What Could Happen Next?
The next stage of the case will center on the competing requests involving the existing custody order and the parents’ disputes over visitation.
Thomas is seeking to preserve the June arrangement, while Willis has raised concerns about the extent and conditions of his parenting time.
The custody evaluation could also become an important part of future proceedings.
For readers following the case, it is worth separating confirmed procedural developments from allegations made by either parent. The court has issued a custody order, but the competing accusations surrounding the former couple remain disputed.
Frequently Asked Questions
Q: Are Rumer Willis and Derek Richard Thomas married?
A: No. They were previously in a relationship and have one daughter together, but they separated in 2024.
Q: When was Rumer Willis’ daughter Louetta born?
A: Louetta Isley Thomas Willis was born on April 18, 2023.
Q: What are the Derek Richard Thomas drug use claims about?
A: Willis has raised concerns about Thomas’ alleged marijuana use and requested drug testing. Thomas has denied drug abuse and disputed the claims about his ability to safely parent.
Q: Has Derek Richard Thomas denied the allegations against him?
A: Yes. Thomas has denied the drug-related allegations as well as allegations concerning emotional abuse and other harmful behavior.
Q: Who currently has primary physical custody of Louetta?
A: Under the June 9, 2026 custody order, Rumer Willis has primary physical custody. The parents retain joint legal custody.
Q: Why are Rumer Willis and Derek Richard Thomas back in court?
A: Their continuing dispute involves custody and parenting time, including disagreements over the implementation of Thomas’ court-ordered visitation.
Q: What did Derek Richard Thomas claim in his latest filing?
A: In his August 27, 2026 declaration, Thomas disputed previous allegations against him and accused Willis of interfering with his scheduled parenting time.
Why the Rumer Willis Derek Richard Thomas Case Matters
The Rumer Willis Derek Richard Thomas dispute has evolved from a celebrity breakup into a significant family-court matter involving the custody and parenting of their young daughter.
The most closely watched issue remains how the court handles the parents’ conflicting accounts. The Derek Richard Thomas drug use claims have been repeatedly disputed by Thomas, while Willis continues to raise concerns about parenting and the conditions surrounding visitation.
At this stage, the safest way to understand the case is to distinguish court orders and documented procedural developments from allegations that remain contested.
Readers following Rumer Willis and Derek Richard Thomas should watch for further court developments as the custody dispute continues.