[Although a bit flustered, he misses that the way she says it. It's so hard not to be happy thinking about her. He just smiles.]

Mhm. She was the only guardian I knew. She raised me for the first few years.

[He considers asking her about hers, then recalls she doesn't want to talk about herself, so asking probably falls under that. And since he doesn't want her sad like before, he tries to stay on the topic she seems to like.]

Ummm... space is nice, though! People have been to space now, you know. We put a man on the moon and everything. I heard you can even buy moon rocks.