Taylor Swift VS Kendall Jenner: ‘KUWTK’ Star Is ‘Out Of The Woods’ Singer’s Newest Bad Blood? One Direction’s Harry Styles Rekindles Flame With Victoria’s Secret Supermodel

Taylor Swift seemed not so happy when her pal Kendall Jenner reunited with her ex-boyfriend Harry Styles. The pair spotted cuddling on a yacht in St. Bart's over a week ago.

Jenner and Styles went to several dates back in 2013 just before Jenner and Swift became friends.

According to a source from International Business Times, Jenner and Swift got really close after and bonded over dissing the One Direction member and were shocked when she found out that they got involved again together.

"Taylor heard from a mutual friend that Harry and Kendall are back together and she is completely shocked," the insider told the news outlet. "She can't believe that Kendall would actually date Harry, especially after their last conversation when she said she would never, ever get involved with him again."

An insider also said that Swift is now skeptical and weirded out to the supermodel and can't really be trusted.

"Taylor and Kendall actually bonded over dissing Harry and comparing notes on him. The fact that Harry and Kendall are celebrating New Year's Eve together is beyond weird to Taylor," the source added. "She really can't trust anything that Kendall tells her, not now that she's back with Harry."

It is widely reported before that Swift is known in dating high-profile celebrities in a very short time such as Jake Gyllenhaal, Joe Jonas, Taylor Lautner, John Mayer, Zac Efron and Conor Kennedy. She's also known in writing breakup songs that made her albums on the top of the charts.

Rumors started to spread when One Direction song entitled "Perfect," which is a part of the British band's  fifth album "Made in the A.M.," came out and seemed like the song was meant for Swift.

The song was written by Styles and Louis Tomlinson and it read "If you're looking for someone to write your breakup songs about, baby, I'm perfect."

When Styles was asked about the song, he simply answered: "Obviously, you write a lot of stuff from personal experience, but it doesn't necessarily have to be so literal. People can interpret a lot of different things in different ways. And I'm not going to tell someone it's not about what they think it's about, because I think the whole point is - it's about whatever it means to you."