Nick and Honey are presented as even more of an ideal couple. They are seemingly devoted to each other and are made uncomfortable by George and Martha's constant attacks of each other. However, in the following acts, we find that this one is aptly titled "Fun and Games" when the truth is revealed about the two couples.
In the second act, we learn that the idyllic perception of Nick and Honey's marriage is exactly that: a fairy tale. George and Martha begin to attack Nick and Honey (as well as each other) and force them to admit the false pretenses on which their marriage is based; namely, that Nick only married Honey because he believed her to be pregnant. Also, the fact that Nick is so easily seduced by Martha makes one doubt the love in his marriage to Honey.
Another perception destroyed in this act is that the men hold the power in the relationships, which was the standard when the play was written. Their sexuality is what gives Martha and Honey their power. Honey used a false pregnancy to force Nick to marry her while Martha, as the daughter of the president of the university, uses sex as a tool to advance the careers of certain professors (although never her own husband).
In the third act, we learn that Nick is perhaps not the athletic sexually voracious man we may have thought he was; his failure to consummate the affair with Martha resulted from his failure...