From the brief, mildly surprised look on his face, the answer is no. No, it hadn't come up yet--understandable, since they hadn't talked very much about the world from Gilbert's point in time. Oz hadn't asked, despite his curiosity. He would, he does want to know, and of course Gilbert would know that. But it had seemed like something he wasn't supposed to touch, some fragile gift that Oz simply wasn't meant to be a part of. He wants to know, but he's accepted that, and he'd assumed Gilbert would have plenty of reasons for not telling him.

Oz's gaze flickers down, and something of a pained smile tugs at his lips. "...He would've been happy to hear that."

Oscar shared their love of precious memories, after all. He would've been--no, he was proud of the person Gilbert became, Oz is sure of that.

It doesn't have anything to do with the topic at hand, since Oscar isn't here, may never be here. But Oz lets himself linger on the thought anyway. Just for a moment.