What should I do with this guy that I like?

Ok so this guy in my homeroom started talking to me on facebook and I fell in love with him because he said things that he cared about me and we talked like very night and he said that o I worked for this guy and he had a huge house and how he was working for his uncle and stuff I geuss to impress me and then all of a sudden he didn't talk to Me for a month and now I have his phone # and now I talk to him alot but he is saying o my girlfriend broke up with me so then I start to flurt and then a month later he gets another girlfriend but he still a little I feel like he likes me but he isn't asking me out what should I do to make him like me again or ask me out!?!?!?