WAS or MLC either way he returned.......sort of
My BIL always preferred the company of women to men. He enjoyed football and going to the local pub. My SIL found out he'd had an affair, he moved out for a while, maybe 3-4 months, they had two boys 12 & 8. She took him back, against all family wishes. About a year later SIL found out he was seeing someone and he left again. He had FOO, mum was alcoholic, he didn't get on well with stepmother, issues with his sisters & drugs.
He hated my SIL dating and wouldn't let her have anyone in the house. Eventually he paid SIL half the house and she moved in with new partner, approx 6 years after he finally left. He kept the family home for a while, but didn't live there, he rented it and lived with a male friend.He abused drugs and lost the house. He became homeless, for a year he slept on MIL floor because SIL asked if he could. Now.....he rents the box room in SIL house. He says she was the best thing that ever happened to him but not sure if he has ever shown any remorse. SIL is still in relationship and lives with her new partner, who IMO is incredibly easy going to have him living there, they actually get on really well. BIL (now 50) has a g/f and has always called mySIL first when anything has gone wwrong with relationships. They are NOT divorced.
I used to think my SIL was a fool, until I walked in her shoes. Not sure I would let H live with me if I had a new partner though. But I don't judge, or try not to anymore, no one knows pain like their own, except for other LBS.