Harry Styles wants to avoid Taylor Swift, since he was the only One Direction member who did not attend the Billboard Music Awards after party which was co-hosted by his ex-girlfriend Taylor Swift at the Caesar's Palace hotel, according to The Washington Post.

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On Sunday night, the British singer flew solo from Las Vegas to Los Angeles just to avoid bumping into Swift. The Billboard Music Awards was held at Las Vegas on Sunday. Styles, 21, and Swift, 25, called it quits in 2013 after. The couple called it quits in 2013 dating for four months.

"(Harry) realised the party wasn't a good idea, so flew back to LA solo," said a Billboard Music Awards source.

"Harry didn't stay in Vegas after the awards, so didn't attend any after-show party," according to a One Direction spokesman, as told to The Sun newspaper.

The "Best Song Ever" hit maker may have decided to ditch the after party completely, but his band mates Niall Horan, Louis Tomlinson and Liam Payne all celebrated with Swift and her new love interest Calvin Harris, reported Entertainmentwise.com.

Meanwhile, Calvin's ex-girlfriend, Rita Ora, was reported kept in the background during the Billboard Music Awards to avoid her own ex-boyfriend.

During the after party in Las Vegas, it was apparent that Swift and Harris were officially a couple, getting cozy next to each other and kissing in some pictures, reported Celebuzz.

Swift reportedly co-hosted the Billboard Music Awards after party with BFF Ed Sheeran. Here is a photo of Swift wearing a wig kissing Harris. See other photos of Swift with other celebs enjoying the after party here and here.

It wasn't only a night of romance for Swift and Harris. The blonde beauty won eight awards at the Billboard Music Awards while boyfriend Harris took home one award.

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