Just want to make clear I'm not sure I have BPD but I check a lot of the boxes and I relate to having a "FP", or at least I think. I've spent my whole life having one friend I put above all the others just to one day start to hate them over a small detail then start all over again with another person. For the first time in years I don't have a person like that in my life and it's because I made an effort to not get too close to the new people in my life because I was scared I would repeat that pattern. 

But now I feel empty, even though I know this type of relationship is unhealthy and doomed to fail. I feel myself getting overly attached to anyone giving me attention. There's one person in particular that I'm not even that close to (known them for a little over two months only) that has giving me a lot of attention and affection lately and I can feel I'm becoming dependant on for validation. I'm getting jealous when I have no right to be. I spend my days waiting for a text from them and imagining them talking to other people, liking them better than they like me, getting tired of me, and it's all so childish but it's really taking a toll on me and I'm scared I'm never gonna be able to have a normal friendship.

Does this sometimes happen to you? Do you have any advice?