Ross is Monica's older brother, Chandler's college roommate, and Rachel's on-again, off-again boyfriend. His first marriage has already failed by the time the show begins, with his second lasting mere weeks. The second divorce seemed to greatly depress him and make him quick-tempered near the start of season five, such as when he screams at his colleague for taking his sandwich and throwing it away. After he gets Ugly Naked Guy's apartment, he is offered to return to work, but he loses his temper again when he sees Chandler and Monica having sex through his window, becoming the last one to find out about their relationship. He also drunkenly married Rachel in Las Vegas, after which they unsuccessfully tried to annul it and had to settle for a divorce, which became Ross' third one. Ross's relationship with Rachel is a major storyline throughout the series. He is also the father of his ex-wife Carol's son, Ben, and Rachel's daughter, Emma. In the series finale, Ross and Rachel finally reconcile, deciding to be together once and for all.