[there's another long moment as she looks him over, her voice more solemn, now]

I think...you're a lot stronger than you think you are...and you're determined to get even more strong.

[...I don't wanna be worthless again.]

I would guess you've spent a long time [being] watching people get hurt and you're sick of not being able to do anything about it.

And I'd guess that you're a lot more grownup than people give you credit for.