Is feeling like you’re trying to convince yourself your partner is a good person / treats you right a common obsession in rocd?

I’ve just recently found out that Relationship OCD is a thing. I feel like I relate but it also feels like relationship trauma. I’m in a fairly new relationship and I keep telling myself that things are going great, we are good, he cares for me, but does he? There’s this unbelievable amount of self doubt that sits in me because of what my ex did to me many months ago. I kept getting told that I do too much, i smother, need constant reassurance, then got told that I don’t care enough, the things I do aren’t enough and that I’m not enough. I feel like I am waiting for the day that I get broken up with because of these “problems” just so I can be proven right at the fact that I should be considered unlovable. I go through this every month around my period because I get so emotional and nervous that I stress over the idea that he doesn’t like me. How does someone continue a relationship with Relationship OCD? How do I explain it?

I'm struggling really hard with relationship obsessions. Do I really love my partner? How can I know? Am I really just faking it? That kind of thing. It's making my life and relationship a lot harder than they need to be. I could use a few helpful coping mechanisms, trying to move away from less helpful ones like chasing reassurance.

Does Rocd make it nearly impossible to forgive your partner for anything. Whether it is big or small? My situation is so gray area where there’s something my bf did that I feel like I’m not okay with but he did this when we were first dating (not bf and gf yet). I ruminate all day about it bc I don’t want to lose him and see a future with him and I know he loves me so purely. But I also feel like I’m going against my morals here bc I do feel betrayed by what he did. I try to forgive him by diminishing my feelings and telling myself “he never did anything physical with a girl or went out with another girl while we were together” but still feel so hurt that he even messaged another girl while us dating. He’s given me an explanation and has proved how much I can trust him so I’m just completely stuck on whether I should forgive something I know I would’ve never done to him or leave him even though the only thing he’s done wrong was before us becoming official. I’ve broken up with him countless times over this situation bc I feel like I “can’t live with it” but then immediately when we break up I want him back and I kind of understand his explanation and reasoning. I don’t know what is ocd and what is my real intuition anymore. I genuinely think it’s both. Are any of you guys in the same boat?