I have a lot of anxiety about my relationship. It’s always on my mind.

I had a little anxiety attack last week and my boyfriend is SO supportive. This was the first time he has seen me crying so much and after it happened I just felt horrible. Like starting to think catastrophic thoughts that he will leave me, that I’m too much, etc. and so now, EVERY little thing that seems off I will overthink.

If he doesn’t reply right away or if for some reason I’m not feeling close, I think the relationship is doomed. How can I just relax and live presently and realize that he supports me and loves me? His actions AND words match it but I’m just an anxious mess.