Search Results: flirting with everyone at school

I've been in my junior year of high school for about 3 weeks now. And after meeting everyone in my new classes, there was one guy who caught my attention. He is notorious at my school for being a player but of course I think i know better than all the other girls who have dealt with him in the past after barely talking to him for a couple of weeks. Anyways, we were talking and i was flirting and he'd smile, so I figured he might be interested. He messaged me on Facebook one night and the next day i asked him for his number at school. After that we started to talk again and he had a girlfriend. I backed off and said that he should figure things out with her before he talks to me so he said he broke up with her. Fast forward a week and we are dating, i guess. But he doesn't text me all day, which isn't a big deal, besides the fact that he's constantly texting people all day long. Physically he wants to move a little faster than normally would, and I often think that I disappoint him. My friends say he is manipulative and probably cheating. My question is, What should I do? I don't date often and I don't have a great track record with relationships. I need help.