Kristen consciously made plans to meet Rupert while still living under the same roof as Rob. Agreed to get it on with Rupert behind Rob's back while he trusted her completely. Why?! She had ROB! Why would any sane girl in her right mind want to do whatever it is she did with anyone else when she had ROB PATTINSON?! She is immature and selfish and needs to grow up. There are plenty of other girls out there who would do anything to be with Rob. He should just forget her and move on as she's not to be trusted.