I am worried about a family member. Her husband left her for another woman 4 months ago. We all knew he wasn’t the best partner, bad temper and spoke to her like shit most of the time but, since he left, more things have come out the woodwork. Controlling behaviour. Constantly lying. Previous cheating. Anger issues. Now he has come crawling back, it didn’t work out with the other woman. He is now saying he has changed. Realised he loves her. Knows his behaviour wasn’t right. He is being extra nice. Running errands for her. Messaging her lovely messages. Buying presents. So now she thinks he’s realised the error of his ways and has changed. I worry that this is all an act. So my question is do/ can these types of people change just like that? They have 2 young daughters and I’m worried if she lets him back in, he will just slip into his old ways.