But following her split with the 32-year-old producer and songwriter this week, fans can't help but wonder: What exactly is going wrong in Taylor Swift's love life?

Some might argue that Taylor's relationships are doomed as soon as she pulls them into the public eye.

This marks Swift's longest known relationship—she had previously dated celebs such as Harry Styles, John Mayer, Joe Jonas, Taylor Lautner and Jake Gyllenhaal, each for several months.

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From 18-year-old Conor Kennedy to 35-year-old John Mayer, Swift is no ageist when it comes to who she will date.

Young or old, British or American, Swift really doesn't discriminate in her love life.

Even the doubters who teased Taylor Swift for her 'serial dating' habits — and her penchant for penning songs about 'long list of ex-lovers' — began singing a different tune about her affair with fellow musician Calvin Harris.

After all, the couple started things off slowly, and the 26-year-old seemed older and wiser.

News that that was "when they really connected" and that Harris "was taken with her." The two also hung out at an after-party, along with Mick Jagger, 72, and continued to meet up after that day.

March 2015: According to reports, Harris and model Aarika Wolf broke up around the time of the Brit Awards after dating for about seven months.

Ryan Gosling and Eva Mendes are hardly ever pictured together. Mary-Kate Olsen still hasn't uttered a public word about husband Olivier Sarkoszy.

But Taylor had often been spotted with Calvin, hugging him at the Billboard Music Awards in May of 2015, sharing vacation snaps on Instagram, and telling him 'I love you' on stage at a concert on her 1989 tour.

How long do you think Swift’s next relationship will last, and what kind of song will the romance (and possible break up) inspire?

In the video for the song, the actor playing the ex handed her a scarf. As the rare example of a jaded relationship song that isn't simply tearing the guy apart, "Back to December" was actually a sweet apology. Besides the timeline in the song matching up with the couple's relationship, there's also the dead giveaway line that says, "I miss your tan skin, your sweet smile.

But at the age of 23, Swift has already had at least ten high-profile relationships (some more flings, really) that have all ended the same way — in song.