I found Athos' reaction to Milady's return in An Ordinary Man very interesting indeed. (I should state upfront that I'm an avid Athos/Milady shipper in all its toxic, fucked up glory. Some sort of Milady redemption is basically my dream storyline for the show.)

Anyhow, with that in mind, I want to see the aftermath of Milady's return. After everyone got the King cleaned up and delivered to the christening; after visiting Mme Pepin... Athos slopes away to a tavern to attempt slow-motion suicide by alcohol. And the others don't let him.

I'm a sucker for Athos breaking down à la the scene with d'Artagnan in Commodities, but really I'll take whatever anyone wants to dish out when it comes to Athos h/c.