Thor is quick to smile at her apology, and he raises the bottle slightly in appreciation. No hard feelings here, Natasha. It's the thought that counts.

As for the rest... he's certainly no stranger to long-buried secrets rearing their ugly heads and causing no end of trouble, some more recently than others. But it saddens him to hear that one such secret has caused the Avengers to fracture, both sides with perfectly legitimate grievances to bear. Thor frowns as he listens. "A difficult situation indeed. I'm sorry I was not there to aid you." Though what he could have done is anyone's guess.