cheating ocd

i couldn't take this anymore. maybe i'll just let ocd win this time. it's too hard to not have a clear conscience everytime i'm with my bf cuz my mind is telling me i'm unfaithful and don't deserve to be happy. i feel like i'll never get better anymore. i already told myself many times to stop attracting attention from other people especially to people i'm having false attraction to. but i did it again yesterday, right after i smiled a little extra in front of that girl i might be attracted to i could feel the massive anxiety in my chest. already decided last week that i might be actually attracted to her so it's best to fully avoid her. i avoided her with the best i could, but we're in the same classroom and i saw her in my peripheral vision looking at us (my bf and i) whispered to myself not to make any mistake i'll regret, but then i felt like i lose control and laugh a little extra. i searched micro cheating and it says there "trying to impress someone you're attracted to" and now i want to break up with my bf. the guilt is too strong. i couldn't sleep at night.

Currently I have several different OCD fears that pop up throughout the week depending on the situation. I've noticed a commonality between all of them are the fears relating to memory/false memory. Today is the ROCD struggle I've been dealing with. I know OCD has been trying this on me lately because of how much I love my spouse. They are my absolute best friend and she's my world. I value our marriage and friendship more than anything. OCD has latched onto one specific female coworker. And I don't even know why because even if I were single I wouldn't be into her. Even still, OCD makes me think I've cheated on my wife every time I'm alone with this coworker at work. Always starts as a what if, followed by imagery, followed by feelings that I must've actually done something and can't remember it. Usually fearing I've kissed her. It hurts because I know I'd never do that to my wife and I love her so much...the idea of losing her kills me, especially if it were the result of something I did. Just wanted to vent. Feel free to share your experiences or vents as well

If I cheated on my boyfriend or did something unloyal , would it come to mind 8 months later? Wouldn’t I have felt and known about it and that it was wrong the second it had happened ? If I wasn’t worried about it 8 months ago, should I worry about it now ? I have major ocd involving cheating and relationships and self doubt .