@amb123,
You're at university to learn. You had finals, and you studied for them, like any normal person. If your so-called friends can't understand that, and they are only at school to party, you might want to find a way out of your lease or at least grin and bear it until you can go, and ditch them, as they are not friends of yours.
Undermining your academic achievement with stupid passive-aggressive games is not what friends do.
If you are lonely and depressed at school, consider talking to a school counselor, even your academic advisor, about how you are feeling. This is a transitional period in people's lives, and sometimes they (you) feel down or it can even be more serious than that. Maybe get to the root of the issue before you perhaps latch onto another group of people who turn out to not really be your friends.