I’m in my thirties now but I found out as a teen that one of my parents had been having an affair while my family was going through some terrible circumstances with my siblings’ health. My parents decided to try again and while I wasn’t in agreement and never forgave the affair parent, I put it to one side and maintained a relationship as I didn’t want to be estranged. Fast forward another 25 years, we find out that affair parent started another affair not long after we found out about the first one and that had been going on for 20 years. The relationship has broken down this time leaving my other parent having to find their own way during their old age and while they’re happier without the affair parent, it leaves me and my sibling with a dilemma. I can’t stand the sight of affair parent to be honest but they’re not in great health, I’d rather not see them or have my kids see them but I think they also need help at least until they get into some kind of suitable housing. Should I put everything to one side and force myself to help them, or am I within my rights just leave them to it?