... This reflects existing literature that relationship satisfaction can become enhanced by similarity between partners (Acitelli et al., 2001;Furler et al., 2014;Hagemeyer et al., 2013;Husdon & Fraley, 2014;Leikas et al., 2018;Reizer et al., 2014) and/or by a relationship's ability to offer opportunities for self-expansion (Aron et al., 1998;Fivecoat et al., 2015;McIntyre et al., 2015). (Sened et al., 2017;Smith et al., 2008), (f) Adlerian birth order (Crain, 2017), (g) Bowenian differentiation of self (Norona & Welsh, 2016), (h) Big Five personality traits (Furler et al., 2014;Hudson & Fraley, 2014;Weidmann, Ledermann, & Grob, 2017), (i) political attitudes and personal values (Leikas et al., 2018), (j) work-life balance (Yucel, 2018), (k) sexual satisfaction (Fallis, Rehman, Woody, & Purdon, 2016;Mark & Jozkowski, 2013;Yoo et al., 2014), (l) perception of mate value (Hromatko, Bajoghli, Rebernjak, Joshaghani, & Tadinac, 2015), and (m) consistency between ideal standards and perceived attributes in one's partner (Buyukcan-Tetik, Campbell, Finkenauer, Karremans, & Kappen, 2017). Conversely, detractors to relationship satisfaction include: (a) viewing one's partner's personality strengths as having significant costs (Kashdan et al., 2018), (b) incongruence of motives for being involved in the relationship (Hagemeyer et al., 2013), (c) hypermasculinity (Karakis & Levant, 2012;Lentz, 2017), and (d) inconsistent interpersonal behavior (Sadikaj, Rappaport, Moskowitz, Zuroff, Koestner, & Powers, 2015), dominant behavior (Sadikaj, Moscowitz, & Zuroff, 2017), shyness (Luster et al., 2013), and depression (Li & Johnson, 2018) in one's partner. ...