Nick does not say whether he enjoyed the afternoon at the apartment in New York, but from his description of the people and events he witnessed it does not seem possible that he could have enjoyed the experience. He explained at the beginning of the novel that he had been brought up to be tolerant of other people, and the best that can be said is that he tolerated the afternoon but was undoubtedly glad to get away. Tom was surprisingly trusting to introduce him to his mistress and to drag him to her New York apartment where he met some of her lowbrow friends. After all, Nick was Daisy's cousin. Wasn't Tom concerned that Nick might share any o his knowledge with her? Or did Tom assume that Daisy already knew he was having an affair and that she didn't want to learn anything more about the sordid details? Nick is almost incredibly discreet. He shares Gatsby's confidences as well as Tom's and Daisy's.