Clark intentionally tries to scare Sylvia by hiding and laughing, and the way he approaches creates a strange and ominous mood. By intimidating Sylvia in this way, he’s trying to gain control over the situation, much like he controls Carla. Sylvia considers that Clark may be insecure, as Leon said, but he can be insecure and still threatening. And Leon
was right: Clark’s intense reaction to Carla’s attempt at leaving shows that he is insecure in his marriage. In this way, the story shows Leon to be wise and Clark to be immature and unstable in his relationships, much like Carla is. Clark has not been physically violent thus far, but he himself introduces the idea that he is capable of violence when he asks Sylvia if she thought he killed Carla. Sylvia says no, but in reality, it seems like the thought may have crossed her mind. She answers that she is just surprised, which is not true—she is terrified but is trying to remain composed.