One Direction star Harry Style and his girlfriend Caroline Flack have broken up. Rumors were going around, and lots of people said he'd dumped her to go crazy on tour.

Harry confirmed the breakup on Twitter this morning, saying "Please know I didn't 'dump' Caroline. This was a mutual decision. She is one of the kindest, sweetest people I know. Please respect that."

But Caroline might not be too upset about it, because sources say she was just "treating the relationship as a fling." Thanks to Wambera Melina for this juicy info!

The relationship was controversial because she's 15 years older than him! Would you ever date a younger guy?

And do you think Caroline and Harry will get back together when he goes back to the U.K.?

Sources: Sugarscape (breakup), Sugarscape (Caroline)