He took a couple of seconds to think about it. Really properly thinking about it, too, not just wasting time. "I... no," he decided, shaking his head as he spoke.
"No, it's too soon. Gabri's my brother and I love him for all that he's a bit-head at times, and I want to marry you more than anything, but I don't want to rush anything. I mean, I know I can go faster than most people, and I still spend days preparing for experiments and this is far more important than any of them, so I'm not going to push for it to happen right now." And he didn't want to deal with Gabe's inevitable barrage of pointless questions or the threat of his mom showing up.