What really puzzles me is why he stayed with her for so long. I am genuinely interested. Yes she was very attractive before the drink and drugs took their toll on her, but looks only goes so far in keeping couples together. She has mentioned in her tweets etc that he has pulled her up on her behaviour over the years but I do wonder why he didn't leave her earlier.
Yes she is truly manic now and I don't say that in jest, she really is reaching mania. But overall these aren't new behaviours they are just escalated now due to her stress levels and fears of abandonment. I genuinely do wonder why he stayed with her.
I thankfully haven't been in an abusive relationship before, but I've been privy to a few where I've been close with either the abused partner or both partners.
Often it's fear for the person's safety. People don't leave because they're terrified to leave. Leaving, and pregnancy, are the two times where you're most likely to be killed by an abusive partner. It's difficult with kids and property to up and leave into a refuge in the night and so the abuser will always know where to find you.
It's also fear for the kids. Better to be there in the house with the abuser than to separate and have them alone with the abuser half of the time. At least when you're there you can try and protect them.
There's every chance that he's wanted to leave for years and only finally now found a way to do it safely or got to breaking point where it was worth the risk to leave because life in the relationship wasn't worth living.
People on the outside often wonder why the victim doesn't walk away, overlooking the reality that the kind of person to be abusive isn't the kind to let you go with a 'farewell, we had a good run, I wish you all the best'. It's absolutely tragic, and a situation that almost all of us could find ourselves in.