I was recently told by my therapist that I could potentially have BPD, so I did a lot of research on it and it made a lot of things click for me. 

My favorite person at the moment is my best friend, and in the past when my FP has been my best friend I thought for a while my intense emotions when they hang out with other people was down to the fact I was secretly in love with them. This has made me question my sexuality ( and I’m still confused) but for me this makes a lot more sense.

My best friend has had girlfriends while we have been best friends, and I have never once felt jealous/rejected by that. However, when he hangs out with other girls who he doesn’t necessarily have romantic involvement in I just assume he’s tired of me and is going to replace me. When I have feelings like these I tend to just shut down, which he can notice and I just feel awful for feeling this way when he is allowed to be friends with who ever he wants. I hate feeling jealous of them,  comparing myself to them and determining that I can’t compete with them. In my head he’ll find out I am the most annoying, worst, emotional person ever and he wont want to be my friend anymore. I’m so insecure all the time and it’s not fair to react this way towards my best friend.

How do I cope better with this?