<human>: Give me the gist of the text in a nutshell

My girlfriend [23 F] and I [23 M] having been dating for 3 years now and have been out of college for over a year. However, for almost the past year we have been falling out. 

She has a problem that cause sex to hurt her and we found out medically a year ago. Since then our sex life has almost completely stop. This has cause us to start treating our relationship more like a friendship instead of a relationship. Whenever one of us tries to be intimate, the other isn't in the mood. Most people would think we were just friends if they saw us in the last couple months. 

Recently we have been starting to hate the time we have together. All did was fight and about different little things and we weren't clicking on the same level anymore. We took a break for a week of not talking or seeing each other. After a week, we talked and we still couldn't figure out how to solve anything. We figured the best thing to do was to break up although neither one wanted to. We both said we loved each other so much, but it might be the only way to make ourselves happy in the long run. We figured it could never be able to get back to how we were when we first started dating.

We're still not sure if this is right or not. However, before the week she was texting her best friend's friend [22 M] and I was kind of worried she was trying to move on. After the week long break I found out she continued to text him and two other guys. When I confronted her about it she just said they were friends who were guys and I was being crazy. 

Am I being crazy to be fixed on her texting other guys during this bad time in our relationship? Is there anyway we can fix our relationship or is it too far past fixing?
<bot>: girlfriend [23 F] and I [23 M] want to get back to how we were when we first started dating. I'm afraid she's texting other guys to try and move on because she's given up on our relationship