My brother has gone headfirst in to a relationship. They got together in October, moved in together a few weeks later and then engaged and pregnant by March. Everything started to unravel. The fiancé insisted on disappearing to her parents every weekend, picked arguments all the time she was home, eventually moved back in with her mum, and they have now decided to have a break but not break up. This has been all consuming for my brother and by default are family. There's too much to go into but essentially his last relationship he was a victim of horrendous domestic violence and his ex then fled abroad with their child to evade police. The new now ex has purposefully used this to hurt him by pretending to be secretive, disappearing, and telling him her family are her priority and he will never come first.
He's now clinging on to the idea this is something she'll snap out of. However, her family are now becoming aggressive with my parents whenever we say anything, however innocent. They clearly don't like us, are furious my parents wouldn't give them £5000 to find a wedding we were told my brothers family wouldn't be invited to because we're snobs. We aren't. We have tried to be friends and it's been rejected every time. My brother is totally broken and I can completely see why he desperately wants to gold on to this. I've talked extensively with him and listened to him but the minute the ex does something controlling he goes running.
I completely understand that victims of abuse often can't recognise a situation is repeating but I do desperately want to protect him.
If they were to turn things around we would 100% support them. But in four months there has been no effort on her part to acknowledge her behaviour while my brother is working hard to build a life. I know he isn't perfect but I can also see how hard he is hitting his head on a brick wall.
What would you do?