When I look back I realise it was over when
He refused to tell me anything about the birth of my own daughter (I was really out of it). I didn't bond with her for a couple of years as a result and he blamed me for that too.
He called me a "fucking cunt" because same daughter didn't quite make it to the toilet in time when she had just toilet trained and wet herself. She was naturally very upset, I reassured her and dealt with it, he raged around the house about how I should have taken her to the toilet and not let her go on her own and I was a shit mother and didn't care about her.
He punched the wall next to me and told me I was lucky because most men would have punched me in the face.
I locked myself in the bathroom to get away from him and he kicked the door in.
I had no idea how much money he earned because it was none of my business and he used our joint account as his personal slush fund, ran up several thousand pounds in debts...
On reflection there were many, many times over the years when I did what so many other women have done - minimised the bad and maximised the good. It took for me to find out he was having an affair to finally end it.
He's still threatening me now. He makes comments to my son (told me this morning) about how it upsets him to think of him "living like this" (he means with me, in a rented house, with my slightly shabby 'eclectic' furniture, rather than with him and his new girlfriend (the OW) in her luxury apartment). He's already threatened me with SS and said that they would favour him over me because he's in a stable relationship and I'm not; and he has a large family/support network and I don't; and he earns more than me.
The signs were there from the start, but then my parents believed that a woman is irrelevant unless in a relationship and told me I was lucky that he'd have me and so I should stay with him. I thought if I just put up and shut up and pretended it wasn't happening, then it didn't matter.