Over already? Superman star Henry Cavill and Kaley Cuoco have apparently split up after just two weeks of dating.

Hey, remember the one about Henry Cavill and Kaley Cuoco dating? The news from, like, not even two weeks ago?

Well, close the book on that story, 'cause the "Man of Steel" star and the "Big Bang Theory" actress are not together anymore, a source tells E! News.

So we have to wonder, how long must a couple be "together" before not dating anymore is considered a "breakup"? E! says the two remain friends after several dates together — which in our world is barely enough time to become not-friends. Then again, we don't date at Hollywood speed.

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"They are totally hot for each other," a friend of the two had told Us Weekly, which first reported the news July 1.

People didn't jump quite so far into the date-o-sphere, however, citing a course who revealed: "They were both single and started dating recently. It's just the beginning stages of a relationship, and they're having a great time."

Looks like that great time whizzed by faster than a ...

You know the rest.

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