"Yeah, some of 'em wrap around. If you keep going in one direction, you come back in on the other side of the... map..."

He's supporting her from behind; since she's still holding his left arm, he's nearly pressed against her back. When she turns to smile at him, her face is very close to his.

He swallows hard and smiles back and blushes so hard his face may be glowing faintly from the energy concentration.