ROCD issue

I’ve been suspecting if my bf has been cheating. I asked if he wanted to be in an open relationship and he said “Not for me. I’m not interested in seeing other people except you. But, if you want, you can.” I’ve asked this months ago and I asked if he would want to be in a poly relationship and he said, “No, not really. But if you want, sure. I’m just not interested personally.”

I keep feeling like my bf is going to lose interest or bored of me. I don’t want to hold him back. We’ve been together for about a year.

He never ever fails to show how much he loves me and we hang out at least every day.

BUT I KEEP FEELIN LIKE HE IS HIDING SOMETHING EVEN THO HE SAYS HE ISN’T BUT I JUST FEEL SOMETHING IN MY GUT-

Maybe it’s my ROCD (relationship OCD) or I’m actually right about him cheating.

I was curious and saw his IG and he follows some random women who he claims he doesn’t know...when I’m just like “dude it’s okay! We can be honest”

He said if I don’t feel comfortable with him following certain followers then he’ll unfollow

Idk what to do. Help? Thank you!