Answer:
Truth.
Both of them realize that their wives are starting to become more independent, and this is not typical for Women in the 1920’s. And the parallels are that Wilson's wife is secretly having an affair with Tom, while Daisy maintains a flirting relationship with Gatsby but she is insecure about a serious relationship with him.
Step-by-step explanation:
The reasons behind this answer are that in the first place, Myrtle is a very smart woman that plays her husband with a great advantage. Making him believe she is bussy. While Buchanan simply leaves ]Daisy is believing she is going to take care of their baby. Also, he has servants to keep an eye on her, unlike Wilson who doesn't have anyone to look for her while he is not close to her. Both start to feel they are losing their wives and once Daisy discovers the affair panics and kills Myrtle in an accident. Leading the book to its climax, and finale.