Harry Styles and Taylor Swift are not on good terms

We know things are probably pretty awks between Harry Styles and Taylor Swift, but you wouldn't think this would stop Harry attending a party with his One Direction band members, Ed Sheeran and probably dozens of other A-list celebs.

Oh, but it did.

After winning, erm, well pretty much every award at the Billboard Music Awards, Taylor Swift threw an after party for all her famous friends.

After being publicly loved-up with her new boyfriend Calvin Harris, the singer was prepared to let go of any bad blood between her and ex-boyfriend Harry.

However, Harry seemed to have different ideas. Even though all of One Direction were invited, Louis and Niall were the only ones that attended. And it has been revealed that Harry did turn down the invite.

A source told HollywoodLife.com: "They have a good mutual friend in Ed Sheeran who has been trying to get all of them together to hang out. Ed doesn’t see any reason for them all not to be friends. He invited all of the One Direction boys and wanted Harry to join in, but Harry knew it would be awkward so he decided against it.”

And while Taylor was heartbroken over her split with Harry, we're sure she's delighted that he probably inspired many of the songs that won her the awards and now she is completely smitten with Calvin. 

A source also said: “She was over the moon that Harry was there to witness how crazy she and Calvin are for each other. First of all, she was able to show Harry that, yes, she’s completely over him. Second, Calvin rocks her world, more than Harry ever did or could.”

Instead of the party, Harry flew back to Los Angeles from Las Vegas.

Guessing they're not out of the woods then…