If I drop out of college, what will happen with my student loan?

I have a student loan through Sallie Mae currently. I'm considering dropping out of college. If I actually do decide to, what will happen with the money from my student loan? I have about $3000 left on the loan, because at my college you only pay for your cles one semester at a time. I know I'm still expected to pay off the loan, obviously. But will they give me the money left of the loan, or would they give the money left on the loan back to Sallie Mae? Please answer only if you know for sure. Thank you!