My boyfriend is my FP. A few months ago I had a psychotic episode and ran away because I believed he cheated on me. We are currently in the process of repairing the relationship and I'm now medicated after spending a week in the psych ward and I have a therapist. 

However I still struggle daily with the paranoia that he is cheating on me. The intrusive thoughts about it happen at least once an hour and give me horrible anxiety. I need to overcome this so I can go back home and live with him again. How do you deal with extreme paranoia about cheating? I refuse to look through his phone or anything like that because I find it to be a breach of privacy. I just want peace. If he cheats, he cheats, but I do not want the thought of it to constantly plague my mind every single day.