Hayden Panettiere and Milo Ventimiglia Break Up! Hayden Panettiere and Milo Ventimiglia have split up, the break up a shock to fans.

Why the split?

Says a tattler:

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

And that means …. what?

The breakup, not confirmed, happened reportedly in the last few weeks. The two never confirmed they were a couple and would at times in 2008 pose separately for publicity photos on the red carpet only to sit affectionately during the same event.