Kate Hudson, Alex Rodriguez, and Cameron Diaz
Back in 2009, Kate Hudson briefly dated baseball star, Alex Rodriguez. After they split, Cameron Diaz was seen leaving his apartment. Sources say that Cameron dated A-Rod to spite Kate, who had hooked up with Justin Timberlake, her ex-boyfriend of four years, right after their breakup.
Cazzie Davis, Pete Davidson, and Ariana Grande
As Ariana Grande ended things with Mac Miller and Pete and Cazzie's relationship slowed to a halt, things heated up for the SNL star and the pop musician. Davis claims that Davidson dumped her via text message only one day before she learned that he was dating Grande through Instagram. Ouch! The couple announced their engagement not long after they first started dating, but they called it off four months later.