Can anxiety ruin relationships?

I’ve been dating my SO for over 2 yrs, my anxiety was basically gone i could do everything until i had a panic attack almost a year ago & it made me relapse. Ever since i feel really insecure, like he doesn’t love me or like he has someone else. I trust him but feeling this way sucks & im not exactly sure what is it that makes me feel like this. I talk to him about it, maybe a little too much & well like everyone else i can tell he gets frustrated of basically being falsely accused & questioned when he has basically done nothing but good & loyal to me. Can anxiety provoke this?