Milo Ventimiglia (left) and Hayden Panettiere Photo by: Steph / Visual Press / JPI
Hayden Panettiere & Milo Ventimiglia Split
Heroes stars Milo Ventimiglia and Hayden Panettiere have ended their relationship, PEOPLE has learned.

"They lead different lifestyles. He's 31, she's 19. She still has growing up to do and he's very low-key," a source close to the couple tells PEOPLE. "The relationship never seemed like it had legs."

The couple, who spent part of 2007 trying to hide their relationship, is still on amicable terms, another source says.

Reps for both actors would not comment.
– Monica Rizzo

RELATED ARTICLES:
2007: Inside Hayden's 18th birthday!
2007: Milo makes PEOPLE's 'Sexiest' list!
RELATED GALLERY:
Read about more celeb breakups on the covers of PEOPLE
This week's cover

On Newsstands Now!

JOSH & FERGIE: ROCKED BY SCANDAL

Did he cheat with a stripper?

Married less than a year, the couple denies an Atlanta woman’s claims that she and Josh had a fling
Note that this week’s cover of PEOPLE may differ regionally

Save $1.00 off this week's issue. Click here for coupon