Final answer:
In F. Scott Fitzgerald's 'The Great Gatsby', Tom and Daisy Buchanan's marriage is not happy, characterized by infidelity, the absence of true affection, and general discontent.
Step-by-step explanation:
Tom and Daisy Buchanan's marriage in F. Scott Fitzgerald's The Great Gatsby is complex and fraught with issues. Despite outward appearances, their relationship is characterized by infidelity, a lack of genuine affection, and deep-seated unhappiness. Tom engages in extramarital affairs, most notably with Myrtle Wilson, showing little regard for his wife. On the other hand, Daisy harbors an old love for Jay Gatsby, which is revisited when the two meet again. The tension in their marriage reflects the themes that Fitzgerald often explored in his works, such as the pursuit of wealth and happiness, the decay of the American dream, and the superficiality of the upper class. Though living a seemingly luxurious lifestyle, the lack of true love suggests that Tom and Daisy do not have a happy marriage.