I met this guy and I really started to like him.. I live really far away from him but we still talked to each other but then one day he told me that distance was too much and that he still had feelings for he's ex-girlfriend.. I cried a lot and I told my mom about it.. then 1 month later he tells me that he likes me but my mom says that if I date him she's going to be really disappointed at me I really don't know what to do.. I really like the guy but I also don't want to let my mom down.. help!

You leave him alone. He has already burned you once. Did he tell you what happened to the ex and why all of a sudden he wants you again?
Listen to your mom.

First of all, long distance is a pain. If you try to have a relationship with this guy, things will just get even harder. I've been in a situation like this before.. and I had to get over him. It took a while, but eventually those feelings lessened, and I moved on. It's going to be hard, but I think that's the best thing you can do.