<human>: Hi everyone! Just wanted to see if anyone could shed light on the situation I'm in. I'm currently a university student on summer break from school. Last spring, I had gone out on a few dates with a guy that I'd felt I had significant chemistry with for most of the year. I was very interested in him then and he seemed to feel the same way, so I told him then to keep contact over the summer, as he is a third year graduate student staying in town for his work and I was returning to my hometown for the summer.

My problem here lies in the fact that I tried getting into contact with him once early on during the summer and I wasn't able to reach him. Since then, I haven't tried again and haven't heard from him either. I'm moving back up this weekend, and I wasn't sure if I should try contacting him when I'm in town again. Or if maybe his not reaching out to me signals that he actually isn't interested in me and I'm just too dense to realize it?

Can you give me the gist of the text in a nutshell?
<bot>: Girl dates guy before leaving town for three months, doesn't hear from him... is he not interested or is the separation the main issue?