Of course he is. In the midst of rolling his eyes at Yato's declaration of getting the same, he doesn't notice his hand going in for the ruffle before it's too late.

"Geh-" He ducks his head and strides faster to try and get away. To him, it feels like a subtle reminder that he's kinda short and child-like.
... But whatever. He'll let Yato get away with it this time.

At least going at each other back and forth like this passes the time, and soon enough they're at the ice cream shop, their order placed. Settling down on the booth's seat Yukine idly pokes at his ice water as he waits.

He doesn't like empty lulls like this. His mind might wander towards things that he wants to avoid talking about. Or more precisely, probably should talk about but... but Yato.