And you've got one guess what the reason was? Yup, Harry's wandering eyes (and sometimes mouth).

Swift is after sitting down with Vanity Fair for their April issue, and while she didn't make the comments herself, they're saying she did 'authorise' someone to dish the dirt on what went down. 'He wore her down. He was all, like, 'You're amazing - I want to be with you. I want to do this. The whole time she says she feels like he's looking at every girl,' the source added, and when they were in London together the insider revealed he 'disappears one night and after that it was like he just didn't want to keep going'.

Ouch. Now apparently Harry pursued her after they split up for a first time last April when a picture of him kissing model Emma Ostilly appeared online, before ending it again for good this January.

The interview also broached the subject of Taylor's boy crazy rep, to which she gave quite an informed response saying 'For a female to write about her feelings, and then be portrayed as some clingy, insane, desperate girlfriend in need of making you marry her and have kids with her, I think that’s taking something that potentially should be celebrated—a woman writing about her feelings in a confessional way—that’s taking it and turning it and twisting it into something that is frankly a little sexist'. We didn't know you had it in you Taylor. There's a new level of respect growing, be it ever so slowly and ever so small. Just make better choices from now on, yes? And just stay away from Ed Sheeran, for the love of God.