Hayden Panettiere Splits with Boyfriend

Love was definitely not in the air this Valentine’s Day for Heroes costars Hayden Panettiere and Milo Ventimiglia.

The couple has called it quits reports Usmagazine.com.

Wait to you hear why!

“It was a lifestyle conflict,” said a source. “They were in very different places.”

“They are still on friendly terms. There are no hard feelings.”

The source adds, the obvious, that Panettiere, 19, “is young. She likes to go out in the Hollywood scene and that’s not his style.”

Ventimiglia, 31,  “has been concentrating on work on his production company [Divide Pictures],” the source adds.