Maybe a Problem: I do not see a proper "relationship" between the four. No friendship. No affection. No long "women talks" Only colleagues. They live together, play cards, and that's it. Sex in one bed: O.K., brings money. Not more. Even if the guests of Eric are there, Jess and Sam are always something "out of the way". Sitting on their chairs nearby. In my country we said "no wire to each other" or "do not get warm with each other". I mean, the relationship with Angie was quite different. Maybe this is one of the reasons why it does not go on.