Final answer:
Toula's statement followed by Ian entering the restaurant represents situational irony, which highlights a contrast between her belief that nothing changes and the actual change occurring.
Step-by-step explanation:
When Toula states that "nothing never changes" and then Ian enters the restaurant soon after, this is an example of irony. Specifically, it is situational irony because the occurrence (Ian entering) is in stark contrast to the character's statement, suggesting a change is about to happen. This type of irony emphasizes the disparity between what is said or believed and what actually happens. When Toula states that "nothing never changes", it actually means that things do change. The use of double negation in this sentence creates a positive meaning. So, when Ian enters the restaurant soon after, it confirms that things do change despite what Toula said.