Thought patterns around husband’s OCD

I love my husband dearly, but I can’t stand his OCD, so I avoid looking at him to decrease my annoyance and whatever negative things pop into my head (and try really hard to not say anything because it makes it worse).

I have been with him 20+ years now, and can’t seem to have peace around it. I know it’s not his problem (he can’t help it), and it’s me who’s bothered.

How should I train my brain around this so that I can accept him for who he is… and find peace within me regardless of what is happening around me?