"Nice dress," is what he nods in return - and it's supposed to be an attempt at a lightheartedness, a sort of ha ha, he knows where it came from, isn't that ironic that Anne and Heather of all people are sharing dresses - but the delivery is so straight-faced it might fall flat.

Which is something he seems to realize, after it comes out of his mouth. Instead of waiting to see if Anne gets offended or not he just barrels on with an almost alarmed sounding "congratulations" and a second or two later shoves out a gloved hand to shake.