[He nods again. Wu had explained it to him, not wanting to be king. Fern, having come from a world where half his friends were royalty in some form, had initially been confused, but he gets it now.]

He was giving up his own happiness to make your whole world better, that's really selfless of him.

[Fern doubts he'd ever be able to make the same choice, if he was in a similar position.]

Both of you should be really proud of yourselves for being willing to do that.