could use a little help here?

so i'm living in a new town, cause i moved here for college. i know my roommate (sort of) and i've met a few people from school. for the first few weeks i was here i didn't really do anything, unless my roommate invited me.

a couple of days ago i met this girl and ended up spending the day with her. we had lunch, she showed me a couple of cool places around town, and we went to this little dock on the river, where we just sat and talked for awhile. later that night i went over to her house to watch a movie. we ended up making out on her couch, and it got pretty late so i asked if i could just stay the night. she said that was fine, and so we went to bed (no sex yet). we both woke up around three in the morning and basically had to have sex. we did, and then just cuddled till we both fell asleep again. the next day i had to leave early for class, but went back to her place afterwards and we just hung out till we both had to go to class again. we've kinda hung out every day since, never for very long though, when we're together she acts very loving (kisses, laying her head on my shoulder, hugs, etc.) but when we're not together and we talk on the phone or through texts, she acts like were just friends.

today she called and asked if she could come see me for just a couple minutes before she had to leave for a day trip, and when she got to my place she came in, said hi, gave me a kiss, and then said she had to go. she seemed happy to see me.

i guess what my question is, do you think we might become something more than what we are? i really like her, she's funny, gorgeous, great in bed. she just confuses me by being so loving when she's with me, but so casual when she's away. anyways any input, help, advice, what have you, would be greatly appreciated.