My anxiety is ruining my relationship

A rant. I've had anxiety for years. I've been with my bf for a year and my anxiety has improved immensely. No panic attacks, etc but now every compulsive, insecure, negative thought goes to my relationship. I'll be fine for a few weeks and it will pop up again. "He doesn't love you. He's not right for you. He'll leave you." "Don't talk to him. Ignore him. He'll get the message."

But we have an amazing relationship. In the beginning we had some ups and downs, he was wishy washy etc, before we were official. And his ex was a pain in the ass up until a few months ago. Im still getting over that one, but I forgive him. Now that there's zero problems and literally nothing to worry about, I can't stop worrying. I google things constantly, look for constant reassurance that my thoughts are anxiety. In turn it just makes me more insecure in my relationship and I can't stop.

When I'm with him I'm nothing but happy, I love every single thing about him, even his flaws. He let's me be myself and loves me for it. ..but as soon as I go home after running errands and working and whatever, the thoughts come back. I genuinely don't want to leave him, he's the light of my life.

It's funny because I'm not that emotional, but these thoughts make me cry profusely. It's really traumatic.

It's not that I'm afraid no one else will love me or it will be the end of the world-- I'm very aware that I will be ok if we break up. I'll get over it.