Unable to understand why his long-time lady love Kristen Stewart, with whom he has just moved in together, has cheated on him, Hollywood heartthrob Robert Pattinson is "heartbroken and angry". According to reports, the star also moved out of their plush $6 million Los Angeles mansion, which the couple had rented a few months ago. According to a close source, He is still in total shock. The source added, Rob is a very, very proud man and Kristen knew how he feels about remaining faithful, loyalty and commitment... He also was horrified that she issued a public apology to him. It was even more surprising because the two of them had this very specific personal agreement about not going public with their relationship, until they both agreed it was the right time. To do it this way apologizing for cheating on him ended up being totally unacceptable. He is still to react after Kristens public apology, in which she had accepted this momentary indiscretion has jeopardized the most important thing in my life, the person I love the most, Rob. I love him, I love, Im so sorry. However, the source said that Robert believes she had no need to tell it to everyone, she only had to call two people: me and Liberty Ross, Sander's wife. The source also said that it seems very unlikely that Pattinson would be able to patch up with Kristen. Im sure he will be able to forgive her eventually. But he will never forget, and that could be a big stumbling block to him letting her back into his personal life. Few months before this shocking incident, Pattinson had said in an interview that he doesn't understand the concept of infidelity. He told Italian Vanity Fair, "Life is not black and white. There are married couples that never see each other. Is that marriage? But there's a thing I've never got: That is, why do people cheat? I can understand the impulse, but not how you can keep two relationships going at the same time for long". Kristen was caught in several steamy makeout sessions with her Snow White and the Hunstman director Ruprt Sanders by a photographer recently.Robert Pattinson's fans are also in a shocked state after the cheating stunt of his long-time girlfriend Kristen Stewart whom he was planning to marry in the future. The angry fans took to twitter to blast the Twilight actress and many of them have even called her B*tch and a sl*t. "Every woman in the world hates you right now, one user wrote, whereas another one, @karleig, tweeted, "Kristen Stewart...you had ROBERT freaking PATTINSON and you CHEAT. "Kristen Stewart you are such a sl*t! How could you cheat on Robert? B*tch. Some Pattinson fans have also blamed Rupert Sanders for letting it happen despite the fact that he is a married man with two children. "I feel disgusted at the married director who allowed it to happen. Ugh, @KatDeCastro posted.