Is Heavy going to hold Medic’s hand, or punch him?
That’s clearly the face of a man who’s just experienced something he was sure he never would, and his innards are flip-flopping because of it.
"Doktor is holding my hand? Is not possible!"
And then he closes his hand around Medic’s as they stroll, and once they get indoors they don’t even have time to shake the snow from their clothes before Heavy’s got his arms wrapped around Medic and is kissing him desperately.