"What it ever takes to get to this point." He's not going to say it - he doesn't imagine it's a very appropriate thing to say at a wedding - but as far as he's concerned, anyone who doesn't get the sheer brutal difficulty involved in marriage is either ignorant or kidding themselves.

"We're glad we could be here. I'm glad we could see it." He gives Castiel a smaller and somehow deeper smile. "You both deserve a little happiness, I think. Not that anyone asked me."