[UGAalum94]

Another thing to keep in mind is that although you hope all Greek members are involved, the first semester is its own level of intensity. There probably won't be a time in the future when every time the member does something with the group she comes home with lettered items or when letters and group paraphernalia figure quite as much into living space decor. (I'm not saying that it's a bad thing to love all things Greek, especially your first semester, but 1st semester might involve a different level of intensity.)

So, while the roommate isn't acting right, and joining something together will probably help with that, some of the situation may resolve itself simply as new member period progresses.