Cant tell if girls likes me or not

OK so this girl i mean i think i love her but i cant tell cuz im only 15 but when im near her my life is so muc better and makes me happy to be near her and i mean i cant tell if she likes me cuz some times shell be like all talkitive and liek be near me then sometimes shell act mad just for a bit but i think it cuz ill tease her sometimes but even then i can tease her and she'll laugh but and ways this weekend i was sitting in like a chair and she came over to play some cards with my friends and she sat in the chair with me and i mean there was barely room for 1 so 2 of us i mean she was liek on top of me then later she got up to deal the cards and she kinda like staddled my legs but then llike a min later she said this is awkward and like then i feel asleep and i woke up and she was using me as a pillow so i didnt care cuz i like her and also shed been down to pick something up and she always seems to have her butt in my face and she was wearing some pretty dame shorts and had a thong on sooo ya thats should help u decide if she likes me cuz i cant tell