Dreams about people you don't want to dream about...

Hi! So I'm new here but I've recently found out I have a strong chance of having Borderline (not quite diagnosed but everyone of my medical team I see at my counselling place agree I show strong signs. I tick st least 6 out of the 7 boxes and I only don't tick the 7th because I didn't quite fit their version of impulsive even though I'm very very impulsive) and I've been getting a lot of nightmares lately. One person appears in the a lot. He's an old crush I had JUST before I got with my boyfriend. I don't like him anymore except for those residual feelings of unrequited love never realised. I'm quite happy with my boyfriend. Literally the best person in my life and someone who can help control the bpd symptoms. He takes the anger on the chin (not literally) and the mood swings and the neediness when I feel like I'm being abandoned. Just so lovely and patient and I love him a lot. He's my first true love not just crush love.
Anyways, this old crush keeps popping up in my dreams. I never want him and he is either with his girlfriend or we talk about our respective partners or I'm yelling and screaming about how much he hurt me. Anyways is it part of borderline to dream like this? I kind of want it to stop, I feel guilty about it even though nothing even happens and I wouldn't do it in consciousness...

Hmm I wouldn't say dreams are in anyway part of BPD. At least not directly. Dreams translate into feelings you have. Sometimes pretty obvious things in a dream like in your case your ex-crush and sometimes much more subtle things (i.e. where the dream takes place). Sadly I can't really find any meaning for an ex-crush, the closest would be an ex-partner and I think that has a different meaning then already.