Do you heart him -- but hate her? Yeah, you know who we're talking about: Your guy's ex-crush who's still in the picture! If you're feeling waaay too much like Serena from Gossip Girl (remember that eppie where Dan dished to Vanessa but not her?), then you'll wanna check this out. And if you're happily free of his ex-flame? You should still read this just in case she pops up in the future...

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