Things are getting heated for Jesse Williams! The Grey’s Anatomy star is enthralled in a bitter divorce with his estranged wife, Aryn Drake-Lee. And now In Touch has exclusively learned that she has gone after his new girlfriend, Minka Kelly!

A source tells In Touch that the mother of Jesse’s children is “deeply disturbed” by the relationship, and she is “threatening to have his girlfriend, Minka, deposed in the couple’s ongoing custody dispute.” In Touch first broke news of Jesse and Minka’s relationship when they were spotted canoodling in Paris in March — one month before he officially filed for divorce. Understandably, the hunky actor, 36, is frustrated with his ex.

“Jesse’s livid,” the source adds. “He plans to have his lawyer fight any attempt to have Minka deposed, because she isn’t relevant to his custody dispute. He suspects Aryn is only trying to do this to seek revenge and to smear his name in the media.”

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When it comes to the custody battle for their two children — three-year-old daughter Sadie and two-year-old son Maceo — things have gotten really ugly, really fast. Aryn filed paperwork for full custody, claiming that Jesse is an “absentee father,” adding that he’s a “bully” whose “prone to rage.” In response to the bombshell claims, he later filed paperwork — obtained by In Touch — in which he maintains that he plays a “constant and significant role” in his children’s lives, and denies having the rage issues that Aryn reported. And now, as his new girlfriend gets pulled into the mess, Jesse refuses to back down.

“Jesse gets that Aryn is hurt, but he thinks she’s acting irrationally and could end up hurting their family if she continues on this path,” the source says. “He’s refusing to back down.”

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