[There's no response to her actual question, if it hurts, and she can only assume it does. That his medicine doesn't keep that pain at bay. That it's something he puts up with constantly, through broken arms and music lessons.]

I think that your heart-that it's very strong. It's good. I can tell things like that.

[Despite his illness, definitely. She doesn't say I'm sorry because sometimes that's your lot in life and sorry won't change that. It's not a cure. It doesn't offer relief. They're just words from people who know they can't help and even if she can't either, she-

Wants to reach him, if he needs it. When he'll absolutely need it because it's hard to deal with that alone and she can only be grateful there's an equally strong child looking out for him in the interim.]

It's okay to say 'it hurts'. You can say that to someone like me.