Instagram and Twitter were used to represent social media. This study investigated the influence of Instagram and Twitter posts on romantic relationships among Gen Z undergraduate students of Redeemer's University. The survey research design was used with a questionnaire as a data collection instrument. The questionnaire was administered to 373 undergraduates of Redeemer’s University which comprised departments with the highest population of students in all faculties. The findings of this study indicated a strong association between Instagram and Twitter posts and romantic relationships among Gen Z undergraduates. The findings revealed that Instagram and Twitter significantly impact romantic relationships, including self-perception, communication, and overall relationship satisfaction. Participants reported that carefully curated posts on these platforms often contributed to the perception of romantic relationships. Therefore, this study suggests the need for increased awareness, critical reflection, and social media usage among Gen Z undergraduates. Parents, educational institutions, and relationship counsellors can be vital in guiding and promoting healthy digital habits. Strategies such as media literacy programmes, relationship education workshops, and open dialogue can empower students to navigate the complexities of social media and foster healthier and more fulfilling romantic relationships. It is strongly recommended that further research be embarked upon to examine other factors that influence romantic relationships among Gen Z undergraduates, as this study is by no means exhaustive of the subject matter.