Harry most likely wasn't snubbed and didn't opt out of attending the shindig to avoid an awkward situation, seeing as Harry and Taylor have appeared to make up and move on – and even hang out together.
While rumors swirled about why Harry was noticeably missing (um...Liam too, guys), buzz ranged from him being sick to Hazza making a speedy getaway back to his beloved Los Angeles.
A source told The Mirror: "[Harry] realized the party wasn't a good idea, so flew back to LA solo."
Meanwhile, a One Direction spokesperson told The Sun: "Harry didn't stay in Vegas after the awards, so didn't attend any after-show party."
Looks like he missed a good time.