Where they met: "Glee"
When Lea Michele and Cory Monteith starred as love interests Rachel Berry and Finn Hudson on "Glee," rumours quickly swirled that the two were dating. The duo initial met on the set of the musical series in 2009, but were close friends for years before starting a relationship in early 2012, per Business Insider. For the next year and a half, the couple attended red carpet events and weren't shy about gushing about one another. "He makes me feel like I can do anything. For the first time in my life, I feel really, really settled and happy. I feel like the luckiest girl in the world," Michele revealed to Marie Claire in 2012. By June 2013, however, Monteith died of an accidental overdose at the age of 31, per The Sun.