As you say.

[Diarmuid knows he could probably argue all day with Ryoji about how strong the boy thinks he is or is not, but that isn't the point and so Diarmuid lets things go.]

I didn't realize I was so hard to find, but this will certainly make things easier. If nothing else, you can always easily leave a note on my bed now. And...it will make it easier for me to find you as well. It is a two-fold advantage.