Future!Hiro is all angsted up because Ando died, and won't tell him when he suddenly reappears from the past. It r proof teh love. And Ando telling Hiro he believes in him is what he needs to be able to travel back to the right time.
They. Are. So. Cute.
In other news: Peter vs Sylar in a Gillete Fusion advert to the finish on the other side of the door succeeded in implying extreme coolness without breaking the budget.