Hold up. The reason she sought out another man is because she lost her attraction, at least to some extent, to Pensa. She may know intellectually that it makes more sense to work on her relationship than to have an affair, but that doesn't mean that she's ready to fully reconnect emotionally with Pensa, especially since he is expressing reservations to her by not even sleeping in the same bed.
Hey, if my wife decided that she wanted to work on our R right now my affection level would not be very high either until some trust and respect was rebuilt.