LOL! I guess punching Pete Campbell does that to a guy. I like how Don is trying hard to stay faithful to Megan-wonder how long that will last.
I am guessing episode 6 or 7. One thing I do find interesting with Don and Megan is that since she’s so much younger then him she’s bringing around her hippy artsy friends. They sort of brought it up a little with Peggy’s Trotsky boyfriend (who I actually really love and think those two are adorable together), but with Megan being there it’s bringing the whole 60’s counterculture thing more front and center.