<human>: I [21 F] met someone [21 M] several months ago. It was all very nice, we went and did grown up things and he showed a lot of interest in me. I assumed it would be ok to fall for him - I hadn't been in a relationship for about 2 years, both my previous relationships were awful and I hadn't liked anyone since then. Not long after my feelings developed he ended up getting into the military and left for another city.

Didn't handle this well at all but haven't been able to let go since. I've seen him since a couple of times, maybe twice. I know he has feelings for me as well, as he's told me. Last time he was here I pretty much broke down about it and admitted to him how much I missed him and still liked him and I guess he was trying to help but the things he was saying to me were not helpful. He told me that "it wasn't the end of the world" and that "I needed to meet someone new". I told him not to come back (again) but ended up caving (again) because we really like having sex with each other. 

It's just really shitty. I know we can't be together but I really refuse to move on. I used to absolutely love being single and hooking up with lots of men but after having a taste of a relationship I don't enjoy it at all. I don't like any of the other men I meet. I find all they want from me is sex, even if I don't sleep with them straight away and try to go through all the "dating" shit. I'm also insanely jealous of my friends who are in relationships. 

I'm at this really stressful, transitional stage of my life and the whole thing is so fucked up. Whenever I think about moving on I am terrified by the thought I might not feel that way I do about him any more. I'm also scared he will meet someone new who he likes more than me and I'll be stuck alone.

Provide a brief overview of the text.
<bot>: Was dating a guy, he moved away, I don't want to let go of him even though we can't be in a relationship.