When he opens up...

My boyfriend and I have been together for a while now. Our relationship is really serious and probably the best relationship ive been in, and he told me that so is his. We are really open with eachother. Ive told him everything I've been through, my pass, my addictions, my failures, my past relationships, even who ive been with... I told him I've been with him and another guy who ive been with a long time ago. I wasn't his first either. He goes to a different school, but he told me that this girl who he didn't have sex with but did get a bj from, goes to the same school as I do, and I found out that i have her for a class. I know I should be feeling jelouse and mad but why does this affect me a lot, like I dont care about the girl he did it with, but why do i care for the girl he got a bj from...

Has this happened to any of you? 😭🙄