Hayden Panettiere & Stephen Colletti Reunite

HALO DISASTER! HALO DISASTER! HALO DISASTER! HALO DISASTER!

Things just a whole lot more interesting for Heroes couple costars Hayden Panettiere and Milo Ventmiglia, aka Halo.

Who showed up at Thursday night’s Teen Vogue Young Hollywood Party held at Vibiana LA? None other than Hayden AND her ex-boyfriend Stephen Colletti (Laguna Beach, TRL). They pair did not pose together with cameras but they had to have run into each other at the event.

10+ pictures inside of Hayden, 18, and Stephen , 21, at the Teen Vogue Young Hollywood Party…

So what does this mean for Halo?? Possibly something, possibly nothing. What do you think??