Listen to my story please?

now theres this girl i like, we chat on facebook every now and then. we rated each other me an 8 her an 8.5 but i think she needed a higher score, she begged me to dance at a recent formal not with her but near her sort of? like just a join in the group dance. but she never texts me or starts conversations on facebook but when i start one, she talks with me. i want her to talk to me. every time in the hallway we pretend we cant see each other, but every now and then we have a time where we both look at each other then look away. she has a boyfriend, but i don't think it'll last Much longer, hes a stoner and hell have to make a mistake i hope, or i could try to get her to like me better. what can i do to make her like me more and have her start convo's with me or text me?