I had problems similar to this before. I became paranoid thinking my girlfriend was seeing or talking to other guys. Every little thing she did bothered me and it led us to a break up. She told me that one of her guy friends kissed her and that she didn't want to kiss him; that infuriated me, but I eventually got over it. I just try not to think about things like that because the more you think about it, the more it ruins you.

We took a break for a month and I started seeing someone else while she saw another guy.

However, we both ended up dumping our "rebounds," if that's what you'd like to call it, and got back together. Since 2013 started, I stopped being paranoid, but I'm not really sure how. I believe that these could be some factors of how I got rid of my paranoia:

• Started to listen to more mellow music or music that soothed me (i.e. The Dirty Heads, Iration, Jack Johnson)
• Exercised more at the gym with my brother (exercise in general)
• Winter sport (wrestling!)
• Interacted more with nature (walking, running, longboarding outside)
• Hung out with girlfriend more just by ourselves (movies, movie nights at her house, dinner, going to public events/places like the aquarium, football games GO RAVENS!, etc.)
• Did more oral communication (less texting, more talking on the phone, skyping, etc.)

I'm not really sure if the list above would work for you and I'm not a doctor, but it's worth a try!. It also helped me with depression and stress.

Best of luck! - John