I think it was a lot more complicated than what she is portraying now. If you follow her social media, she has a feminist/social justice sort of holier-than-thou attitude sometimes. She compared her abuser to the sheriff on Stranger Things, prone to jealous rages. And she said that she hates it when a partner tries to forbid her to have other sex partners. Feels it is a form of trying to control her.
When I use my imagination, what little we do know about him, her, and Dita a decade or so ago ... I can see where all hell could have broken loose.
As far as if he feels any remorse (for whatever wrong things he actually did), there was something at the end of his Revolver interview where he said he tried not to share everything with his romantic partner anymore. Or expect too much from her. Said in the past, doing that had led to some situations that were definitely not for the best. And he was glad to have Shooter Jennings to share his shit with these days. Keep the two separate.
I cried when she first came out with it in late 2017 and early 2018. I felt horrible for her and horrified at him. Sometimes I still do. But in this era where everything is a melodrama, people struggling for the moral high ground (more often than admitting where they've fucked up, themselves), I think sometimes it's a good idea to take a deep breath, step back, and look at the facts.
People are making too many decisions based on emotions and knee-jerk reactions. While I'm not the biggest fan of some of Donald Trump's antics, I also see where a lot of times, people take what he says way out of context. Whether it's "they let you grab em by the pussy" or the sarcastic "I am the chosen one". They blow it out of proportion. In the same breath, he was absolutely wrong for insisting that the recent hurricane was threatening the Gulf Coast. Some local weather offices there had to correct him, so people would stop calling them about it. Both cases, the President and the people who love to hate him, let their personal feelings override facts and common sense. That's one of the funnier examples lately, but I'm sure you can think of more on your own. It is the new norm ... hysteria.
So please be careful about that. There are all kinds of ambiguities not only here, but in many other cases. The #metoo and Times Up movements were necessary things, but with any social movement, things can get worse before they get better. I'm not so sure I buy wholesale into the allegations against Chris Hardwick or Johnny Depp either. As far as Marilyn Manson, he definitely did some things wrong. His own assessment of calling Evan over 100 times at Christmas while suicidal was that it was "a stupid thing to do." And I saw him on video admitting the whole relationship was a mistake. But I also wonder if she did things wrong to him. And how much she might be embellishing to sort of throw cold water in people's faces. It's hard enough to know what to believe when it's a typical couple going through their worst times breaking up. When it's a colorful cultural villain and a relationship with no sane basis to begin with (realistically she was never going to be his soulmate and marry him ... in her own words, she was looking for adventure and to taste the wild side of life) ... I say all bets are off.