Explain the irony in Jack's saying I am not going to play any longer Not with you?

The irony in Jack's statement "I am not going to play any longer, not with you" lies in the fact that he is declaring an end to the interaction while still engaging in a form of play by making the statement itself. It suggests that despite his insistence on stopping, he remains involved in a dynamic that is inherently playful or confrontational. Additionally, it highlights the contradiction between his desire to disengage and the emotional investment that keeps him in the conversation. Thus, his refusal to play only emphasizes the complexity of their relationship.