The reason why Boone had to pretend to be gay was so that he could 'kill himself' due to be persecuted as a homosexual. He went to Kappa to try and join but Chanel #5 went insane and refused to let him join and yelled at him in public.
Chanel #5 was also really upset about the fact that they had to allow new pledges into Kappa (all of the chanel's were...maybe not so much #3) and the reason for that could be because it would just be a lot more people for her to have to kill.
Chanel #5 also has run into the RD many many times but has never died. She was chased around the maze, attacked in the closet YET the RD killed her boyfriend and let her live (why???) then there was the time the RD was in her car. I think Boone or Gigi was dressed up as the RD and Chanel #5 was trying to get them away from the kkt house. They kept trying to sit up in the back seat to talk to Chanel #5 but the truck driver saw them.
I've had a feeling it was Chanel #5 since the first episode. She is ridiculed the most by Chanel and has tried her hardest to be the next in line to be the president of kkt yet everyone seems to be in front of her.