"Well, your unerring ability to take care of me when I least want it," is the immediate, and maybe easiest, answer.

Although, really, that's part of the bigger: "Your heart. The way you care about people. The way you're curious about things and you do things even when they scare you."

Steve shrugs a little, again. "It's hard to put everything into words. But I can see it. Who you are is... still who you are, even though yeah, you're different. That's okay. People change." How can they not, after being through hell?

Well - that brings out one more thing. "You came out the other side. You're... strong."