"Oh, well, in that case."

Mo is disdainful, but only mildly; it's the sort of semi-affectionate disdain Bob usually gets. This is fairly standard for their relationship, and if Mo weren't expecting this sort of thing every now and again they probably wouldn't still be married.

But nothing gets in the way of them still being married. Plenty of things have tried, and yet it never seems to quite split them up.