#12: Robert Pattinson and Kristin Stewart

Duration of Relationship: 4 years (2008–2012)

The end of Robert Pattinson and Kristen Stewart’s relationship in 2013 left Twilight fans heartbroken, as their on-screen love had mirrored their real-life romance. Their breakup followed Stewart’s highly publicized affair with director Rupert Sanders, which became a media storm in 2012.

Despite Stewart’s public apology and efforts to mend things, the damage to their trust was irreparable. Pattinson, who had largely remained private about the affair, eventually moved out of their shared home. Though the pair briefly reunited, they ultimately went their separate ways.