I hope this won't be too long... all right so I am a Freshman in college and I got this girl in my class who I find attractive, and we have only known each other for about over half a semester (so not too long I think). But we always are chatting and having fun and I assume she's giving off signs that she likes me, for example I notice her looking at me during class and she laughs at my jokes and so on and so forth and we make eye contact when we talk, and we talk on myspace as well but not as much as in class, and sometimes I assume she is playing her games and tries to get me to follow her by just ignoring me for a little bit and seeing if I bite (I might be wrong). So I was curious if she liked me as a possible boyfriend or just a friend so I asked her. She said, "as a friend yes, as a boyfriend i'm not sure yet" she didn't look away or anything when I asked her. So is she not sure or does she just want to be friends.

she also ended a 2 year relationship 4 months ago. Not sure if this adds into the equation.

She is probably enjoying being single for the first time in 2 years, and is starting to like you but may not be sure whether she wants a relationship or just to flirt for now.
Be patient, if anything is going to happen, it will happen in time.