<human>: Could you distill the essence of the text into 1-3 sentences?

So when my friend (we'll call Belle) and my crush (Heather) first met me they were according to Belle, fighting over who had "dibs" on me. They would argue bout it in Latin class and other times. Fast-foward 6 months to today. Right now I really like Heather, but she doesn't like me back.  From the time she met me I was infatuated with a different girl and Belle told me that seeing me desperate was a real turnoff. She really didn't know the deatils of why she stopped liking me. Now I'm not sure if it was a flirty non-serious sort of liking or she actually did like me, but now that things have changed for me and I really like her is there anyway there's hope for me to bring back her old (if ever existent) feelings in the future. Belle currently is trying to set me up with this other girl Joann. She thinks that Heather could like me, but I need to like someone else to clear the air. The majority of my friends are doubtful she'll ever come around though. Liking Joann will as Belle said clear the air, it'll at least make Heather think I don't like her anymore. Over time we all became really close friends and Belle said the time for me to act was when I first met her and she liked me. I showed her my entire personality...including the immature side. Right now Heather has been creeped out bu me because she thinks I'm infatuated with her...which I'm not. Any Advice?
<bot>: This girl used to like me. I didn't like her then but now I do and she doesnt. Can I change things with her and get her interested again?