[Uncertain what to do but not eager to stay anywhere she might be seen by the fairies, the girl edges over to stand next to him, lingering near the wall as well. Her fingers lace together, perhaps in the hopes of deriving some comfort, and she looks up at him curiously as he speaks. It's certainly an interesting theory. Perhaps spirit energy and hearts are... similar?]

I think I understand what you're getting at. I'm not sure if that would work, but... I'm not sure that it wouldn't, either. Much stranger things have happened. It's a good guess.