[He might have said 'please' just because he knows you very rarely refuse him it when he actually does ask, yes. But he uses his powers for good.]
You need to keep your strength up, for when they get back. [And they WILL come back, before you can start doubting] Both you and I have left this place for longer than this before, and come back.
[He's just glad you don't get this bad when he leaves, too...]