Taylor Swift thinks her ex-boyfriends were too "competitive." The country singer - who has dated Hollywood hunks Jake Gyllenhaal, Joe Jonas, Taylor Lautner and John Mayer - claims her showbiz relationships have all ended because her jealous exes couldn't handle her being more successful than them.

"I've found that men I've dated who are in the same business can be really competitive. I've found a great group of girlfriends in the same business who aren't competitive, but a few times guys have started comparing careers and it has been... challenging. The last thing I think about when I fall for someone is what they do for a living as I like to get to know that person, but sometimes guys start acting weirdly towards me, especially if I get good news and they get bad... It's usually downhill from there."

The "We Are Never Ever Getting Back Together" hitmaker is famed for penning lyrics about her ex-boyfriends and she can't believe anyone would ask her not to put down her feelings in music as they should assume it's a "waiver" of dating her:

"It's mind-blowing how some guys have just handed me inspiration for some of these songs on a plate. Some have said, 'Please don't write about me,' but only when we're in the process of breaking up. If a man dates me, he's kind of signing a waiver saying he's cool with me writing songs about him. I write songs about my life: it's not something I've kept secret."