Serena Williams, Drake, and Common
The feud between Common and Drake all stemmed from his relationship with Serena Williams. After firing off a series of diss tracks, Common finally admitted that all the hostility boiled down to Drake dating his ex-girlfriend. "At that time, I think it was the Drake-Serena situation," he said. "So unfortunately the war might have been over a girl."
Kylie Jenner, Tyga, and Blac Chyna
Tyga and Blac Chyna began dating in 2011, and the pair had a son together before breaking off the engagement in 2014... but rumors of a romance between Kylie Jenner and Tyga also started in 2011 when the artist performed at Kendall Jenner's sweet sixteen. It wasn't until right after Kylie turned 18 that the couple became official. These days, the on-again-off-again couple shares a daughter together.