Need help on how to deal with boyfriends daughter?

My mother has been in a serious commited relationship with a guy for 3 years. His daughter, who is 24 yrs old, for some reason seems not to like my mom. I've never met her before (we live in two different states). For the daughters birthday her only wish was to have dinner with her biological Mom and Dad together...my mom was not invited. This hurt my mom's feelings pretty bad. Her boyfriend did not see anything wrong with this. Does anybody else think this is wrong?? She brought this up to him on how she feels and he got upset, saying there was nothing wrong with him having dinner together with his ex and daughter. Please help, my mom is starting to listen to her boyfriend who keeps telling her that she is overreacting.Need help on how to deal with boyfriends daughter?
The way I see it is that the daughter wants her father to give her mother a second chance. She doesn't like having divorced parents and, if anything, is nostalgic.





I understand where she's coming from, especially if she saw how committed her biological mother and father were to each other in her childhood. However, it was still a bit rude to veto your mother's presence.





Your mom has a right to feel insecure about the dinner with the ex-wife and daughter, but after all, it's an ex-wife. The daughter only requested it because it would mean a lot to her. If your mother's relationship with her boyfriend is stable, nothing bad will happen. And if it does, well, it'd be best to end it soon.