The increasing use of generative artificial intelligence has created new forms of communication between users and conversational AI, particularly in academic and creative contexts. This study investigates the relationship between emotional literacy, NLP-based rapport building, and ChatGPT-mediated creative communication, with particular attention to the role of rapport building in connecting emotional competencies with creative communication outcomes. The study employed an explanatory sequential mixed-methods design consisting of a one-group pretest-posttest quasi-experimental phase followed by a qualitative phase. Participants were 50 university students with previous experience using ChatGPT for academic or creative writing activities, and data were collected through self-report scales measuring emotional literacy, NLP-based rapport building, and creative communication, followed by an open-ended reflective question. The quantitative phase was designed to examine changes and relationships among the three constructs using descriptive statistics, paired-sample t-tests, Pearson correlations, and mediation analysis, while qualitative responses were analyzed thematically. The findings presented in the study indicate a positive pattern across emotional literacy, NLP-based rapport building, and creative communication, with the proposed model suggesting that NLP-based rapport building may mediate the relationship between emotional literacy and creative communication. The study highlights the importance of combining emotional awareness with adaptive communication strategies when using ChatGPT for creative purposes and suggests that effective human-AI communication should be understood as a human-centered process rather than as a purely technical interaction. However, the reported numerical results are illustrative and require validation through actual participant data before definitive empirical conclusions can be established.