I understand completely how you feel about that, although sadly this year I'm living with my annoying ex boyfriend who unfortunately is on a course similar to mine, is friends with all my friends, living in the same flat as me and who is basically in my face 24/7. When me, my ex boyfriend and three of our friends all decided to live together in september 2014 (the start of my second year), it all seemed well.
Half way through the summer, we broke up and I realised that there would be no point in hating one another because we'll have to live together in a flat in our second year. The first couple of weeks of living together I didn't handle it too well because deep down I hated him for how he treated me on the night of the break up. Since then, I've been happily single and he's also been single however, he's tried it on with nearly all of my girl friends (including the one in my flat!) which I personally think its awkward, but to him he acts completely oblivious to it all and that it's perfectly normal.
Last year when I lived in Victoria Halls, I didn't get on with my flat mates there either. I was flat mates with one girl and two other guys. The one girl never spoke to me and would always go off with her own clique of friends, one of the guys would always be in his room and the other guy would never be in, so technically I was always on my own in my room. It was like this for at least three months until I met my friends who lived in the halls across the road and from then on, I was always over there. There was one incident where me, and the rest of the tenants in the flat almost got fined because one of the guys was smoking weed in the flat. I almost got charged for this when I don't even smoke!
When I first moved in, I even suggested going to reception to see if they could locate me to another room because I was unhappy with the social side of the flat. I'd moved from Cheltenham up to Liverpool and I didn't know anybody so obviously I felt quite isolated and the girl who I lived with knew I was alone but never offered to hang out with me. Towards the end of my tenancy, I couldn't wait to leave and now I'm so glad I'm away from it.
(sorry for this being so long!)