The Influence of Implicit Theories of Relations (ITR). people's perceptions and behaviors in their romantic relationships ( Knee, Patrick & Lonsbary , 2003 , Knee & Bush, 2008, Franiuk , Cohen & Pomerantz , 2002 , Franiuk , Pomerantz & Chen , 2004 , W underer & Schneewind, 2005). H o w e v e r, a little is knowing about what is in one's own ITR may influence how that person perceives others human romantic relationships hips. However, the opinion of a friend about couple relationships hiit is an important source of social network influence ( Etcheverry & Agnew, 2004, Lee et al., 2004 ).2 0 1 0, Sprecher & Felmlee , 1992 , Wright & Sinclair, 2012). In fact, peers have been have been shown to be more accurate in predicting the potential outcomes of relationships than romantic partners themselves ( Loving, 2006). T h e r e f o r e it is important to understand factors affecting the perceptions of these 3rd parties to better understand their role influencing the outcome of relationships. T his quasi-experimental study investigated how an individual's I T influences their perceptions of others' relationships.