Love...help... :-(?

Im a guy and im friends with this shy girl.she often looks at me a few seconds smiles a little and looks down or side ways...away from me...does she like me.She was pull puss when i was leaving from her home and saying please stay until tomorrow.When she found out i was bitten by a dog when i was small she kept askin me to show her the marks.i saw her taking a shower almost complete naked and she never mentioned it again.and she smiles when walkin past.she likes playing against me in games and keeps smilling at me sat infront of me.once i saw her after waking up and she was sat up on her bed and just smiled at me.she was going to change her clothes once and was walking past with her clothes and did a very sexy look and smiled.once while chasing her she fell and i never helped her up just thinking how beautifull the touch of her body touching mine was...i hope she doesnt think i dont care thats why i didnt help..Do you think she likes me.she a bit shy and i cant tell whats going on.does she like me..or is she crazy about me and is trying hard to hide it.,does she love me...should i tell her...i love her..im in love with her.

Maybe you should tell her you like her. If she keeps looking at you or blushing all the time