I am a horrible friend

I am spending a semester in Italy with a group of 30 Americans. I really like 28 of them. (Perhaps I should say 27, so as not to include myself). The guy and girl who I don't like, nobody else likes either. That isn't a cue to feel sorry for them. They aren't the nerds we've all decided to pick on. We all tried to be friends with them, and each individually decided that they are obnoxious, and not worth our time. Most of the group is going on an overnight trip to Turin this weekend. We have to decide with whom we want to share a room for a night. I haven't asked the powers that be, but I think they expect us to share rooms with people of the same gender. Of the seven guys in the group, one is going to Amsterdam. Three of us had class together on the day that the rooming signup sheet appeared. One of them asked me if I wanted to room with him, and I said "yes." The other one, a few minutes later, told me I was rooming with him. I wasn't sure if this was a question or not, so I apologized, and told him I already had a roommate. He explained that we were living in a triple. That leaves three guys unaccounted for. After a minute, I realized the implication of this: A good friend of ours was going to be left in a room with the obnoxious one. Moreover, the jerk hates this friend of ours a lot, complained about him ceaselessly in the beginning of the semester, and has talked about how much he would like to beat him up (he is physically capable, but as far as we know, he probably would not.) I couldn't help but laugh. I told everyone why I was laughing, and they started also. One of them said "You know what this means? Cage match!" Then, I remembered that there would be a sixth guy on the trip, and maybe they would also end up in a triple. He is pretty neutral regarding any conflicts within our group. He doesn't seem to hate anybody, and certainly nobody hates him. I'm not sure if he even knows about the animosity between his roommates (he joined the group somewhat late, and they've been able to avoid each other pretty well for a while). He speaks very loudly, very colorfully, and with a Brazilian accent. The story just became funnier when we realized that whatever does happen in that room will be recounted to us by him. In conclusion, I was going to phrase the title of this entry as a question, but upon reflection, there is very little doubt.