My mind is having a thought: if I don’t confess all that I did wrong to my boyfriend I will commit the unforgivable sin. What am I supposed to do in this situation?

I’ve been feeling the compulsion of confession again. I hate confessing things to my boyfriend I don’t want him to carry the burden. I’d rather hurt than him hurt. But I feel I did something wrong and he needs to know. Like I need to be punished or something. I may be over reacting to it but I just feel guilty and I had a panic attack when I woke up yesterday. I would never cheat on him. Just making guys laugh I feel like I am doing him wrong or flirting. And then when I notice it I just feel awful. I just want to be liked and noticed not romantically but just as a human. I don’t know why I act like this and feel the need to tell him as if I slept with someone. I think it’s attacking my biggest fear which is losing him. Does anyone have experience with this?

I can't stop confessing! I have this urge to dump on him every thought and wrong doing I've ever had and its destroying me! Im worried it'll destroy us too. When we started dating I stole a story from a friend to make myself look cool which was pathetic. But its the only time I remember doing anything like this.

What if I didn’t repent for something that I’ve been thinking abt but don’t know if it’s a sin like should I repent for it anyway I have this interaction that keeps spiraling through my mind and idk if I should text the person about it or just leave it