Hm, what should I do about this situation?

[CRAZY]

So this boy and I have currently been in the talking/dating stage for about 2 months. He's really amazing, and I like him a whole lot, and I can tell that he likes me back. Now there's this boy who I sort of met in the beginning of the semester. He's friends with the boy I'm talking to, but not close friends, but he's part of the group he's in (I go to a big university, but somehow this big group hangs out and knows each other lol I'm kind of a part of that group). Recently, I followed him on Twitter and added him on Facebook. And now he's coming off strong on me, sending me dm's and calling me pretty and asking for my number. I wouldn't mind becoming friends with him - he's a really funny person. But I already like another guy. What should I do?