Have name changed for this as I don't want it linked to other posts.
My DH has a son, 15, who spends 3 nights a week at our house. I have a 19yo who is away at uni a lot of the year. DH regularly agrees to go on nights out on the nights when his son is staying with us. He'll be out all evening, not getting back til late. He picks up SS and drops him at ours then goes out. I feel like he should try and be here most of the time when SS is here for contact but I genuinely don't know if I'm being unreasonable. Whilst he doesn't require looking after as such, he requires feeding and entertaining which falls to me.
His counter argument to me is that I sometimes go out when my DD is with us. The difference is that a) this is her main residence when she's not at uni, and b) she's an adult.
What do think fellow stepmums?