Friends close to the couple blamed the split on the singer getting too serious too fast.Insiders says Taylor - who was four years older - freaked the then 18-year-old by coming on too strong - and because of her apparent obsession with his famous family.
We love Taylor's preppy fashion sense, from those ladylike top handle handbags (this one is Louis Vuitton, natch! We love the cut out back and pinny straps on this mini dress.
Click the link (right) to get a closer look at Tay Tay's exact dress and out your name down on the 'want list', or check out (no pun intended!
Taylor then reportedly penned I Knew You Were Trouble about Harry Styles' cheating ways.
The former couple reportedly called it quits for good in October 2012 when a photo of him kissing a model in Australia circulated around the internet.
He has also appeared in a model shoot with Gigi Hadid, a close friend of the singer.