For a moment, he entertains the idea what would it be like not to feel so lonely… be it for a single second.

It happens when he's watching his younger self being kissed. And tries to suppress a pang of desire and jealousy so strong it almost makes it impossible to breathe.

It doesn't last long. But when they're alone some time later, he leans forward and kisses the surprised man…. be it for a single second.

"What? Why did you do that?" says the other one.

He smiles, once again miserable. "I couldn't stop myself."