You walk up behind the hotel and see Lightning and Marker with a whiteboard, as Lightning draws a bunch of hands on the board. He's blushing. Tree did mention Marker being all secretive earlier...

Lightning: Attempt 2763.

Marker: We've tried this sooo much, Lightning! We can't doooo iiit!

Lightning: C'mon, Marker, we have to get this right...please?

Marker: Only because you asked like that.

The two stick out their hands and look away. This is ridiculous. They're trying to hold hands.