Milo Stalks While Hayden Panettiere Shops

Heroes couple Hayden Panettiere and Milo Ventimiglia were photographed leaving L.A. boutique Jenni Kayne separately on Saturday.

Was this a ploy to prevent cameramen from getting a picture of them together? Or was something more sinister at hand?

Perhaps Hayden, 19, fell back into her old habits and scheduled a little lovin’ on the side. And maybe unbeknown to her, Milo, 31, was wise to her girlie antics.

He was, after all, jilted by her in a recent bid at cohabitating.

Then again, Ventimiglia might simply have wanted to avoid getting arrested for kidnapping.

Either way, whatever Hayden was up to, it looks like it brought out the villain in Milo.