As soon as he's given the invitation, Gary hugs her. He doesn't mention how Nill doesn't need to apologize--that would involve thinking about that encounter in detail, and he would like to avoid that. Gary shuffles those away.

"Why wouldn't I be happy? This is awesome!" It's about the best explanation Gary can provide for how he's feeling right now. That's probably enough, right? "I mean, yeah, my brother isn't you, but he can do basically the same stuff. Like--he can't walk around and stuff while he's talking--" And to make sure that Nill knows what kind of 'talking' he's referring to, Gary taps a finger against his head. "--and he's got more of a...I dunno. He's more solid? Shit." He purses his lips. "Like he's really there, but isn't."