The majority of patients with cancer experience clinically significant levels of distress (Dyson et al., 2012; Kwak et al., 2013; Yanez, Garcia, Victorson, & Salsman, 2013) that varies by age at diagnosis, cancer type, and psychosocial needs. Across multiple oncology studies, it has been reported that relationships with family and friends are important sources of support throughout the cancer experience (e.g., Goodall, King, Ewing, Smith, & Kenny, 2012; Miedema, Zebrack, 2011). However, a close relationship can also be a source of distress for patients with cancer, particularly those who are emotionally unavailable or unable to handle stress (Synder & Pearse, 2010; Zebrack, Chesler, & Kaplan, 2010). Contributors to the oncology literature suggested that distress levels between patients and their partners are interrelated (Gregorio et al., 2012; Juth et al., 2015; Kim & Given, 2008; Segrin et al., 2007). Dyadic research that includes patients and their partners is necessary for developing programs and interventions better targeted at meeting patients’ and their partners’ needs. Yet, these factors and the exploration of adaptive processes have not been examined among couples who are facing cancer. In light of these facts, several implications are provided for clinical practice, future research, policy, and the field of medical family therapy based on the above-mentioned studies (Rajaei & Jensen, 2020; Rajaei et al., 2021a).