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Robert Pattinson, Kristen Stewart

"Twilight" fans were crushed when reports surfaced that the franchise's star Kristen Stewart cheated on her leading man and real-life boyfriend Robert Pattinson. Photos released by Us Weekly in late July showed her getting cozy with her married "Snow White and the Huntsman" director Rupert Sanders. Within a day of the photos hitting the Internet, the often stoic Stewart admitted to cheating in a now famous emotional statement apologizing to Pattinson. In the past month, RPattz has indicated that he's through with Stewart for good, even reportedly putting the L.A. home he shared with her on the market. (11/14/2011)

Hot and cold celeb couples of summer

Some stars spent the summer taking their relationship to the next level, while others went their separate ways. – By Lizbeth Scordo and Raechal Leone Shewfelt, omg! staff