Mary-Kate Olsen vs. Paris Hilton

Mary-Kate Olsen and Paris Hilton have dated the same guy. Let that sink in. Mary-Kate was dating Greek shipping heir Stavros Niarchos back when she was a teenager, but he left her for Paris Hilton, who she considered a friend at the time. Reports claim she dropped out of NYU because she was so heartbroken. Yeah, that's why MK left NYU. Not because she had a billion dollar empire to fall back on in case the whole college thing didn't pan out. Stavros and Mary-Kate ended up dating again, but obviously that didn't work out because he's a total d-bag. No word on whether or not Paris and MK ever kissed and made up, but we're guessing it doesn't matter because those two definitely don't have any social overlap these days. We mean, Mary-Kate runs some of the most successful brands on the planet and Paris...is a DJ. As for Stavros, he recently split with rumored fianceé Jessica Hart.

It should also be noted that not too long after, Nicky Hilton dated David Katzenberg after Mary-Kate did. Sure there was no overlap, but sisters always inherit grudges from each other! That's like, the point of sisterhood (besides genetics). What did Mary-Kate ever do to the Hilton sisters? Are they trying to sabotage her because the sister duo she's part of is infinitely more chic?

[Photo via @marykatetomyashley]

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