Venting

I need to vent.

I have this very toxic trait where if I haven’t spoken to my SO in a few hours, I automatically assume that I did something wrong. Even if he’s busy with work (he’s military) I assume somethings wrong.

My ex really messed up my head and I’m still trying to fix it. Does anyone have any suggestions on what I can do to help me not assume the worst? My SO cares so much about me that I’m not worried about him cheating, we live 6 hours apart currently, but I trust him.