Does she like me what should I do? I was so sure she did?

Me and her used to talk to each other everyday for an hour straight in p.e. we'd walk along the track together talk about our dreams and all kinds of personal stuff. See im the new kid so I wasn't sure off the bat but i got such a strong vibe we've known each other for 2 months we were good friends for a month and a halve until this guy told her Ive figured he made me look bad when he told her I know this to be true I don't know what he said but im guessing he said i was obsessed with her. She's pretty uptight ( future doctor college driven type) but I felt something special when we talked. I have a bad past of done bad things at my old school I doubt she knows this but I do have a big chip on my shoulder its obvious but I dint think its a bad thing. Its awkward talking to her now I mean we still say hi but I can tell sometimes she tries to ignore me. Ive ****** up before but I want to try and make this work out. Keep in mind she and me used to talk all the time and it felt like even from the start we understood each other but I don't know please help!!!!!!!!