<human>: Can you give me a shortened version of the text?

Dating an incredible girl for 5 months now. She's not out of my league, we're both about equal social status and direction of life.

But, I am incredibly insecure about it any I can't pinpoint why. I have yet to let insecurities affect the relationship, but I know in time they will so I want to get to the bottom of it.

We have both had similar amounts of sexual experiences in the past, but anytime I hear about hers I get anxious. I know it's not fair because I have my own, so I will never bring it up with her.

Whenever guys hit on her I get a little anxious, not much though because I know my worth. I am a good catch im aware of that. But I still get anxious. Even after she leaves my house, literally minutes after, I get anxious and worried that I said something wrong when we hung out and she got upset about it. Its borderline paralyzing and it almost makes me want to cry (what kind of man am I!?!).

With all this being said, I keep it to myself because I know it's irrational and it's just my mind jumping to many, many conclusions that aren't real.

I do not want to let it destroy my relationship so I am asking how to improve this issue. Should I bring it up with my girlfriend (likely not an option) or conquer these demons myself? The odd part is, in every other aspect of my life (jobs, school, friends) im pretty good with dealing with stresses and my worries are reasonable, but in relationship, I get way too attached and it's a daily battle to keep it to myself and hidden.
<bot>: I'm aware my anxiety in relationships is irrational, but I want to address it (not with her) and get to the bottom of it before it destroys my relationship.