Does anyone else find themselves placing too much meaning on their SOs past?
I torture myself with these things and I'm not sure why. I have been with my boyfriend for almost a year now and while I'm technically his first actual girlfriend, he's had quite a plethora of sexual history. 
And I will bring up things I saw on his social media from 3 years ago, before I even knew him, and act like it was some terrible thing he did to me. And I make myself believe that he's still this person who wants to go out and party and have sex with random girls and this is all set elaborate joke on me. 

Last night I went through 3 years of his Facebook timeliness and I'm still in a pissy mood. I don't understand why I get so jealous and obsessive over it. He gets pretty upset/defensive when I bring it up and then I fear he's going to leave me. 

Anyways. TL;DR: how many of you obsess/get unhealthily jealous of your partners past? I'm not sure if it's just my own issues or if it's common among others with BPD. 