Lily Collins and Taylor Lautner: Why did they break up?

lautner-collins-gettyWe're all positively reeling from the devastating news of Taylor Lautner's breakup with "Abduction" co-star Lily Collins. Reeling. How could this happen? Why, cruel world, why?

Thanks to E!, we've got all the gruesome details. Apparently, the romance lost its luster when Collins went to Canada to shoot "The Brothers Grimm: Snow White" in which she plays... Snow White.

"[Taylor] wasn't into it, and she made all the effort," a source says. "He wouldn't even visit her."

The horror.

They've been broken up for about three months, even though the news only just hit the press. She's already dating other guys.