Nico was the son of Hades, you’re the son of Apollo—it's known the two of you were close, best friends, some might even say smitten. Sleeping, holding hands, flirting, and playfully bickering with your best friend is normal. Of course it is.

A repeated knock awakes him out of his slumber, irritated, he opens the door, ready to yell or attack the offending person, to see no other than.. oh, “What the hell are you doing there?” Nico grumbles.