Men (Mad Men) behaving badly

A quiet episode of "Mad Men" Season 3, in which the tensions lie below the surface. Very little in this episode takes place at the Sterling Cooper office. It's August, everyone (pre-ac) is hot and edgy. Main story line for this episode: Pete is home alone for August, as Trudy is off with her wealthy parents at some beach resort. He cooks for himself, watches TV (cartoons - and he laughs, he does have a sweet side it seems!), we begin to like and feel sorry for him, and then he hits on the au pair next door, obviously taking advantage of her, practically raping her in fact (we don't see it - this is broadcast TV). Au pair's boss tells Pete to leave the girl alone (he's as hard and unfeeling a Pete - he just doesn't want to lose a good employee), and Pete sheepishly welcomes Trudy home: don't go away without me again. He can't trust himself to be alone. A glimmer of hope there? He wants to be a better husband, maybe. Meanwhile, Don is trying to be better - takes Betsy with him on a business trip to Rome. Their behavior is odd and sensational. She gets herself done up as a Vio Veneta streetwalker, obviously enjoying the attention of some Italian guys. Don sidles up to the table, plays along as if he's picking her up. This rekindles their relationship - or does from his POV. He give her a gift of jewelry back home. But the ever-cold Betsy remains oddly indifferent and snappish. Did she enjoy playing the hooker a little too much? She's still thinking about that gubernatorial aide - though she pushed him off when he tried to get her alone. There's a great deal of anger in Betsy. Will it ever be unleashed?