I disagree costa. I think it's just 2 groups...Karol, Leia and the twins...and Foxy, Asty and Diane.
The twins are obviously closer to each other, as are Karol and Leia (who are friends outside RLC). Foxy and Asty are also good friends, and share a room, but, although Diane tends to do her own thing sometimes, these three like to party outside together more than the other 4...I just hope they don't bring their party to the house and invite a boatload of dodgy blokes...