Answer:
before long they're just as unhappy
Step-by-step explanation:
The word "ecstatic" means a feeling of being very happy or overjoyed. So, this means that the person is extremely happy compared to what he usually feels.
The phrase that serves as a context clue for the word ecstatic is "before long they're just as unhappy." This shows their prior feeling before being ecstatic. People can actually feel ecstatic when they talk about money, however when they get only the basic necessities, they go back to feeling unhappy. This shows how people are not contented with small things, when in fact, they should be happy about it.
So, this explains the answer.