<human>: So, i've been completely enamored by my one friend for about two years. I started getting feelings for her as she was starting a relationship with someone else, and I kind of had a thing with someone else, so I didn't do anything about it. Flash forward to the present, my feelings are just as bad, if not worse, and she is still with her boyfriend.

Her and I are still really close friends, we talk a lot about feelings and troubles we're having. She's told me about how she worries about her current boyfriend and how they will be when they both leave for university (She's going somewhere 5 minutes from where we live, he's about an hour and a half away), and I've helped her through it. She even says she's feeling so much better about their relationship after I helped her, and she thinks they'll easily make it work. On another occasion, I was having anxiety issues, and she told me a secret. When I was in Grade 9 and she was in grade 10, she had a huge crush on me, and didn't do anything about it. She even said she's "always found me attractive." Ever since that talk, she seems to be a little more flirty (although she is kind of a flirty personality)  and we've been talking a lot more.

I just don't know what to make of the whole situation. It's very bittersweet, because I'm happy to see her happy, but also feel like I'm not good enough for her. I sometimes feel like I'm being a vulture to their relationship, but I can't get over her. I don't want to be that guy and worm my way in, but I'm worried I may never get the chance to tell her how I feel. What does everyone think of the situation? What should I do? Thanks so much in advance.

Can you give me the gist of the text in a nutshell?
<bot>: I've fallen hard for a friend who's already taken, but I've been getting weird vibes that maybe she likes me back. You should probably read all of it, it just explains it better.