ocd and abuse - advice?

I’m a good man and I know that. My OCD revolves around relationships. While dating someone a truly enjoy, I find myself needing to compulse everything on my mind or else I feel like I’m being a liar or keeping secrets. I also am pretty confident I suffer from false memory ocd. I don’t like to put a label on things but I’m 99.9% sure I do. My compulsions a lot of times come from things I’m not even sure are real. The more thought I put into them, the more I start to believe they are real. One of the worst compulsions I had in my relationship was I had a thought “what if I find my ex more attractive” and “what if I thought the sex with them was better”. I ended up compulsing these things to my gf. After lots of time to think and get a ahold of myself I was able to remind myself that these things weren’t true and I was just in a downward spiral. There was a 2-3 month period where every time I was relieved of something then I would instantly think of something else. These compulsions have caused insecurity in my gf and I feel like a terrible person. Never meant to hurt her at all and was just trying to find a sense of relief. While I know it is not true, I can’t fix things with words and I feel terrible. I would love to hear from people with tricks and strategies that can help. I love my gf and want to fix things and understand this is not a relationship fixer app but I would like to know what are some ways you are able to deal with these kind of things.

Has anyone else experienced something like this? I’m graduating from college soon and i have been so stressed about finding a job, signing a lease for an apartment, college ending, I have an ungodly amount of assignments to do, I have a tumultuous relationship with my mother that has recently blown up again, and so much more. I am just so overwhelmed, I snapped at my boyfriend last night. I immediately apologized but i still feel awful. One of my biggest fears is being an abusive partner and i feel like this confirms that I am one. My best friend was also there and he saw me snap at my boyfriend and I’m scared he thinks I’m awful too. He saw me apologize so maybe that makes him think differently, but i can’t know for sure. The logical side of me tells me it’s not that deep, i apologized, and it’s time to move on. But i feel like i need to apologize to my best friend too to make sure he doesn’t think im terrible, but i know thats reassurance seeking. The ocd in me is punishing myself and refusing to move on.

Does anyone know how can you determine ROCD compulsive thoughts vs actual relationship issues necessary to bring up? I’ve been in multiple abusive relationships in the past and I don’t want to go through that again. I’ve been with my partner for 3 years, we’re both mentally ill and we’ve hurt each other a lot over the years. I have some trauma due to their alcoholism, but I want to still be there for her. However my head is constantly telling me that whenever they’re gone I’m worried they’re drinking and cheating, trying to harm themself, planning on harming me or they’re gonna die if im not basically with them 24/7. Even when I want time to myself I force myself to be with them sometimes out of fear. I see them do/say something that might suggest these things (following a new girl, ignoring my texts while they’re out, raising their voice at me etc.) and I’m even more convinced and I don’t know how to stop. I don’t know what is a suspicion I SHOULD bring up to them, and what is just a compulsive thought. :( How do I determine that?