i wish i could just be happy with my partner without thinking every second of every day how i messed up and how i should just break it off even though i know that i do love them and they are the best thing to ever happen to me. why can i just be happy

So i had really bad pure ocd but recently it’s been sooo much better but i’m in a relationship and me and my bf dated before about 2 years ago then we broke up and now we are back together but i’m having an issue where i will try to go back years and find something i did wrong and i really do not want to find anything to feel wrong about or guilty specifically something i may have done wrong to my boyfriend but the thing is i’m a good girlfriend and i’m very loyal so i don’t want to ruin something for me because of my past if that makes sense like i can’t remember doing anything wrong but my brain keeps going are u sure let’s look at all your interactions with people and it’s so annoying i just wanna live my life in the present does anyone have any tips

everytime i go out with my bf, he annoys me so much, but i get easily annoyed, he is just being himself and im so so si irritated by him, and i act out and i am rude to him, today i have upset him and he stopped talking to me. i font know what is wrong with me, i dont lnow if i like him, if i still have feelings, if i only want the ideea of the relationship, what if im only attached to him. i dont know anything, i have so many doubts. im so drained, i diny even know if i care that i upset him. i dont know. what if i dont care???

I’m ruining my relationship, and idk if it’s OCD or if I’m just an awful person. I’m tired of constantly fighting with my boyfriend. but I have no one to blame but myself. I can’t stop picking apart everything they say, I can’t stop being so negative, I can’t stop overthinking and obsessing, I can’t stop feeling like they’re lying or being inconsistent. I constantly ask too many questions to the point where I feel he thinks I’m stupid. I’m starting to feel stupid myself. It seems like I can’t understand basic conversations with my boyfriend anymore unless they’re super black and white. He deserves better. I don’t deserve love. I feel like I’m destroying the one thing that makes me happy. I don’t feel happy with him anymore because we’re constantly fighting. And it’s all my fault. I think I’m just an awful, crazy person