Using sociometer theory (Leary, 1999), this study investigated the relationships between argumentativeness and verbal aggressiveness, self and partner's perceived commitment levels, and self-esteem within romantic dating relationships. Survey results (n ¼ 152) indicated that 1) a moderate relationship between one's self-esteem and one's perceived partner's commitment level existed, 2) a positive correlation between one's self-esteem and level of self-commitment existed, 3) self-esteem was negatively correlated with verbal aggressiveness, and 4) self-commitment did not mediate the relationship between selfesteem and verbal aggressiveness. Discussion of these findings and their significance are reviewed.