Ciji and mark on the Ultimate Gamer?

I started watching at around episode 5 (the Halo 3 paintball thing) and don't know what the deal between them is?|||Mark is sooooo stupid. You see, Mark told Ciji that he would never cheat on his girlfriend, but then he took her into the bathroom and kissed her. Ciji didn't like that because she just wanted to be friends, and so brought it up with him later. Mark then told her that he didn't do anything and didn't kiss her and she hated him for that and said that shed never forgive him. After that they were like enemies and avoided each other. End of story. Personally, I think Mark is an a*s! He went against Ciji because he knew he'd beat her so he eliminated her. LOSER! I really liked Ciji!|||i wanna give Ciji a SPANKING!