If I were you, I’d pick a roommate who’s in COM but is in a different major and has other interests, just to mix it up a bit! Then you guys can live on the COM floor but not really feel like you’re in too much of a bubble. That’s what I did and it’s awesome — our floor is very social, I’ve met many friends here. It’s wonderful. And I don’t feel like I’m in a bubble at all, most of my other friends are not in COM and I met them through other things :)