Why is Hayden Panettiere today's College Crush? Is it because she's really hot? Yes. Is it because Heroes was on TV last night? Possibly. Or is it because she's now single because she just broke up with her way-too-old boyfriend Milo Ventimiglia. Ding! Ding! Ding!

That's right, the 19 year-old and the 31 year-old are no longer an item, according to the official statement found here:
 

An insider told Us magazine, “It was a lifestyle conflict. They were in very different places. [Hayden] likes to go out in the Hollywood scene and that’s not his style.”

Apparently, there’s no need to worry about tension on the set of “Heroes”, the source adds, “They are still on friendly terms. There are no hard feelings.”

Or is it because she was spotted making out with Jesse McCartney a week ago? Hmm. Well whatever the case, I think there are millions of single guys all celebrating, that is until they all realize that they will never, ever get with Hayden Panettiere.