Weird dreams about my gf and breaking up

Weird dreams Something about some time me and my gf broke up (I think we were together in the dream and this was about some time we had been broken up) and this girl with long blond hair and a black outfit/dress (i think) shows up at my mom’s house where I happen to be all upset and so I briefly try to calm her down and then start saying stuff I know bugs her and she keeps calling me my partner’s gf which I’m not cuz I don’t identify as a girl. At first I thought she was just one of my partner’s “friends” who she wanted to bad mouth me to and maybe flirt with. But then I got a bit more concerned. At some point it devolves into some weird thing where she asks me to sleep with her and I say no I ask my gf if they were together when we broke up and she sorta yell mouths “NO!” After I think I sorta ask the same question multiple times. The girl continues to be upset I briefly go to the other room to talk to my mom who I think was asleep during all this and had woken up and she asks if I made coffee and I say somebody did (I think my gf?) Then after all this I’m upset and bothered by the girl And that’s about it