'Twilight' star Robert Pattinson is reportedly on the verge of a mental breakdown due to the constant spotlight on his personal life. The 24-year-old actor is struggling to deal with being one of the world's biggest stars and his co-star Kristen Stewart,whom he is constantly linked with,is said to be worried about him,Look magazine reported. "Kristen's absolutely frantic about Rob. She's never known him to get so upset. He's gone from obscurity to being one of the biggest stars on the planet and the pressure he is under is unbelievable. She's trying to keep his spirits up but she's worried he needs more support than he lets on," a source said. Meanwhile,the duo are considering to quit Hollywood in order to focus on their relationship. "They are considering changing their lives so they can concentrate on their relationship and get away from stardom. Kristen has suggested they try theatre work and indie films. They are both incredibly talented actors and very well thought of in the industry. Despite starring in big-budget productions,they've managed to retain credibility,so theatre is the perfect option," the source added.
