I found it kind of odd how Pam was being a bitch about the microwave thing, and then when she is first being shown the house the expression on her face looks pretty crestfallen. Was she lying when she said she loved it, or was I just misreading the initial look on her face or the icy silence as he showed her around the house?
Jim and Pam may not have had a shouting match yet but they've certainly been estranged this entire season. Jim was feeling completely abandoned while she was off living it up in NYC with all her new friends especially her guy friend who's telling her to ditch Jim and stay in art school.