A month prior to our agreement, he decided to go on a "break" from his girlfriend because she doesn't want to have sex with him until he tells her that he loves her. We both agreed to start this relationship just for sex and that's all. In the beginning, things were going great both at work and in the bedroom. Suddenly, I started to develop secret feelings for him. Also, he began to feel guilty because he felt bad for his girlfriend.
Eventually I decided to end things because I didn't want to get any more attached and I thought he should work out things with his girlfriend. Although we both agreed to stop having sex with one another, each of us find ourselves randomly asking one another to come over.
At this point, he does not know that I have feelings for him and it's driving me crazy. I know I should leave the whole thing alone but it's tough because I see him every day at work. Help! What is the best thing to do?