Everyone Mary-Kate Olsen Has Ever Dated

Here's when things get a little juicy. In April 2005, Mary-Kate began her infamous, but short-lived relationship with Greek shipping heir Stavros Niarchos, who, as we all know, also famously dated Paris Hilton. As it turns out, he'd actually met Paris through MK, as they were friends at the time. The betrayal on both their parts compelled the usually private star to open up to the press. Amid taking a leave of absence from NYU to pursue her acting career in LA, she told W magazine, "I miss him and I love him and I don’t speak with him anymore. It’s a hurtful and painful subject. This is a hard time for me." 

As for Paris? She said, "[We] always only had nice things to say about each other," adding, "Now I guess you can tell we're not talking."

So if you're keeping track, that's two Hilton sisters who've stolen her boyfriends...