Brooke Mueller, former wife of Charlie Sheen, seemingly got the best of a nasty exchange on Twitter over Father’s Day weekend after Sheen posted a rant aimed at another of his ex-wives, Denise Richards.

Sheen reportedly took to the micro-blogging site to slam Richards, both in short tweets and in an open letter in which he calls her various names and says she calls him a “deadbeat dad” even though he’s given her millions of dollars in support (they share two daughters). However, he gave a glowing review of Mueller, calling her a “rock star”.

“Brooke M is a sexy rok star whom I adore D Richards a heretic washed up piglet Shame pile Happy Father’s Day!!!” Sheen allegedly wrote.

The tweets appear to have been deleted, but the open letter remains online and can be found here. In it, Sheen slams Richards’ acting abilities and says he’ll see her in court.

Denise Richards then posted a response on Twitter, saying simply, “Happy Dad’s Day! @charliesheen have a great trip in Mexico! Kids were disappointed u weren’t here for it- Hey we’ll celebrate when u r back!”

Sheen has become well known for his rants over the years and has reportedly had beef with quite a few people, leading to backlash that included his leaving Two And A Half Men and a rift between him and co-star Jon Cryer. Cryer told Seth Meyers that he didn’t feel conflicted about including the story in his memoir, because it was such a huge story at the time and fans were eager to hear his side of the story.

Brooke Mueller has not responded to Sheen’s rant, but hasn’t been immune to her own set of troubles; last year she regained custody of her children after a drug overdose sent her to a psychiatric hospital.

“The judge in child dependency court signed off on the move. Brooke was extremely emotional and grateful that the ordeal has finally come to a conclusion. There will be no more random drug tests required or required parenting classes,” a source said.