<human>: Basically, I've fallen for a friend of mine and haven't really been able to get over it. I don't have any reason to believe she feels the same way, and in fact I think she's casually dating someone else.

I haven't really been talking to her much for the past couple of months, and I feel bad about that. I don't want her to think I'm mad at her and also don't want to make her feel uncomfortable by dumping all of my feelings on her. I don't want to lose such a good friend, but I feel like that will happen after we graduate if I don't say anything. How should I handle this situation?

Provide a brief overview of the text.
<bot>: How do I tell my friend that my unrequited feelings for her are why I haven't been talking to her?