Abstract
This study investigated social media usage and relationship anxiety as correlates of expressed Relationship Violence among Undergraduates in Lagos State using Correlation survey research design of quantitative nature. The population of this study is made up of Undergraduates in Lagos State. Two hundred and forty (240) Undergraduates in Lagos State constitute the sample for this study selected through multi-stage sampling technique from 3 randomly selected tertiary institutions in Lagos state. Three standardized scales were used for data collection for the study. Data was analyzed using Multiple Regression to answer the research question and Pearson Product Moment Correlation (PPMC) to test the hypotheses raised for the study at 0.05 alpha level of significance. The result of the study revealed that there was significant associative relationship between the independent variables and the dependent variable (Relationship Violence among Undergraduates) in order of magnitude. Also, social media usage significantly correlates significantly with Relationship Violence among Undergraduates, r (238) = 0.44, p<.05. Likewise, relationship anxiety r (298) = 0.31, p<.05 correlates significantly with Relationship Violence among Undergraduates. It was recommended that Undergraduates should be encouraged to develop positive attitude to relationship building and be emotionally sensitive and accommodating to other people’s feeling to avoid conflict and relationship violence.

Keywords
Lagos State, Social media usage, Relationship anxiety, Relationship violence and Undergraduates