Traditionally, theoretical and empirical accounts have considered relationship evaluations along one single dimension
ranging from positive to negative. However, in this theoretical work, we stress the importance of using a bi-dimensional
conceptualization of relationship evaluations in which positive and negative dimensions can vary independently. In doing so,
we describe the four evaluative quadrants experienced in relationships and outline their unique interpersonal processes and
outcomes, both from the perspective of the person experiencing them (i.e., actor effects) and from the perspective of the
recipient of such evaluations (i.e., partner effects) and considering both explicit (i.e., deliberative) and implicit (i.e., automatic)
processes. We also provide a framework that predicts how relationship properties are likely to influence relationships
evaluations, and we introduce the Trajectories of Relationship Evaluation Model (TREM) that describes changes in evaluations
over time and the factors that influence such changes.