AIBU is probably not the best place for this. But it is busy and I want opinions or other people's experiences.
My DH and I generally have a good relationship. Been together for 18 years.
We have overcome some challenges (his infidelity and my subsequent trust issues).
He is his mother's only child. She was never his resident parent when he was growing up, his DF was. His mother is a difficult character but most of the time they get on but have an upset every few months and I think he gets quite emotionally drained from her presence as he is very short tempered and snappy after spending time with her, this has always been the case. As she is getting older she is expecting more and more from him. It has become a problem between him and myself as he financially supports her from our family pot. Spends time helping her. She gets an invite to xmas / birthdays but then has some fall out with someone and the event is soured. I have gone LC with her but respect that my DH feels he should look after her and I accept this is what he wants to do. She lives alone and he worries, she is early 60s, not elderly. She has no friends or relatives still in touch with her so he really is the only one emotionally and practically supporting her.
But I don't want to spend years of my life with all this going on. I don't want to spend years having to interact with her regularly, my wages support her and his horrible attitude after yet another fall out with her. Or his exhaustion from having to deal with it. It's like treading on egg shells and it's making me miserable.
It's not a good reason to leave a relationship, is it. I would be V U to break up a marriage because of this. But I can't think what else to do.