People in relationships, how has OCD affected that?

mine hasn't necessarily negatively affected the relationship, but... i am constantly thinking that he's "lying" about where he's going, what he's doing. there's always the thought that he's just faking everything and doesn't like me at all, even though he does everything right. I hate it! I am always thinking the worst and that this is all made up. My mind never stops racing about how im not good enough and how he is only with me bc he feels bad, which i know is not true. and if his tone changes ever so slightly (in text or in person) i instantly start panicking and think he's done with me, but i've been able to reassure myself most of the time, so the thoughts just come and go.

I never accuse him of doing any of the above things, i just think about them and then forget about it until the thoughts come back. it wouldn't be fair for me to accuse him of things my brain is making up :)