User blog comment:SayuriDarling/The Blood of Olympus Official Discussion/@comment-24055022-20141015022726/@comment-24065371-20141017215540

seems kind of obvious that will was interested in nico and vice versa, his speech about having friends here, stern looks about nico coming to talk to him and not keeping him company, wanting him to stay. All seemed very subtle flirting similar to how annabeth started with percy.

And nico certainly seemed to be thinking of will as someone he could be close to