What did George, Wilson and Tom learn about their wives and how did they each react?

During the luncheon, Tom realizes that Gatsby and his wife are romantically involved. Gatsby stares at Daisy with undisguised passion, and Daisy recklessly remarks, within earshot of Tom, that she loves Gatsby.

Tom, unsettled, goes inside to get a drink, and in his absence Nick remarks that Daisy has an indiscreet voice. When Nick goes on to say that Daisy's voice also has an indescribably seductive quality, Gatsby blurts that her voice is "full of money."

Tom, desperate to pick a fight with Gatsby, forces the entire party to drive into New York. Gatsby and Daisy drive in Tom's car, while Nick, Jordan, and Tom drive in Gatsby's.

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When Tom, Nick, and Jordan stop for gas at Wilson's garage. Wilson tells them that he's decided to move his wife out west, since he recently learned that she's been having an affair; he does not yet, however, know who her lover is.