OP, I felt very similar to you when I went to college. I had earned a scholarship to a good D1 school that I may (or may not) have gotten into on my own.
I was in-state, and a lot of people from my town went to this school. When I arrived on campus two weeks early for practice, I was bombarded with social opportunities. Guys were rushing me hard for a few fraternities, inviting me to parties, introducing me to girls, treating me awesome.
I spoke with my coach about Greek life and he asked that I wait until 2nd semester. Normally they require you to wait until sophomore year, but he was going to let me do it early. Still, I was pissed off and resented the team and running for "ruining" my college experience. I felt as though I was more popular, better looking, etc. than the guys on the team; they were just a bunch of dorks I barely knew. Still, I ran and once second semester rolled around, I rushed the oldest, most coveted house on campus. I was in. I was made. I got laid all the time and was drinking - not always heavily - 4 or 5 nights a week. My running suffered and pledging was awful. I made it through, put on about 10 pounds and started sucking it up on the track. I got "injured," which kept me on the team.
Summer rolls around and I move in with some of my brothers. Nice guys, but they were such fat slobs. No one worked out, people smoked in the house, etc. Around the same time, I started realizing that the guys on the team were actually pretty cool guys. Many of them had been popular in High School (not that it matters), which was something that I thought was unique to me. A couple of the guys had girlfriends that were really pretty, nice and normal. I found myself enjoying time with these guys more and more, even though I lived with my other "normal" friends. After runs, I was hanging out with the runners, etc. I started to enjoy going to dinner and a movie with a smaller group more than the keg/drug parties that we threw a few times a week. I would groan upon waking in the morning, not because of a run, but because I felt like shit and knew that we had another party to get ready for that night.
Eventually, I left the frat, the living situation and the lifestyle, and moved in with some runners. I ended up being All America my senior year in the 10k and XC.
I still keep up with all of these guys, the frat brothers and the runners, but the runners are probably my closest friends to this day. Obviously, I have made other friends through work, my kids, the country club, etc - but I still respect the runners more than anyone...
OP, make of college what you will, but if you quit running and party all the time, you will probably regret it. I regret that 1/2 year. I wish i had gone into running with everything I had. You have your whole life to drink. No reason to make mistakes and be stupid when it matters most.
Don't glorify partying. It can be fun, but like anything, it is more fun when you do it sparingly.