>>16394558And that's what I get for missing the "I'll kill myself if you leave" threat. Looking back over his wording there, I get the sense that she wasn't the one who beat him up, though I could be misreading something.
But yeah, if she pulled out the suicide threat, things are serious. Not because she's in any actual danger of killing herself: she isn't. You should never ignore any other kind of suicide threat, but no one who says "I'll kill myself if you leave" ever does. If you do decide to leave, then you can rest easy about that.
But things have most definitely taken a darker turn. Even if it turns out that she had nothing to do with the beating, she is still turning manipulative, hence the threat. This cannot be allowed to continue. She is not well, and she needs help.
Whether or not you stay, or for how long, is a choice only you can make. In your shoes, I would like to think that I would stay for a little longer, but only a little. I do not judge people who do differently, or would like to think that they would. There is a lot of appeal in the idea of fighting for the woman you fell in love with, even against the woman she's becoming, but you need to be sure you can win. If not -if you are sure that the woman you loved is gone- then it's time to go.
You certainly can't win alone. She needs a professional. As, frankly, do you, even if the reasons are different from what I originally thought they were. I know this carries some risk of debt, though you may want to see what benefits your employer offers along these lines. But it is imperative that she, at least, get help. This will only get worse otherwise.