Henry Cavill, Kaley Cuoco

It's over before it even began.

Henry Cavill and Kaley Cuoco have split after 12 magical days together, a source tells E! News. Of course, the potential power couple could have been together a little bit longer, but they were only publicly outed as a pair on July 1.

Shocking celebrity breakups

Cavill ended his 10-month relationship with actress Gina Carano in May and Cuoco, who dated herBig Bang co-star Johnny Galecki, split from musician Bret Bollinger last winter.