The perks of being grateful to partners: Expressing gratitude in relationships predicts relational self-efficacy and life satisfaction during the COVID-19 pandemic.

Being grateful to one's partner matters for a diverse range of interpersonal and individual well-being outcomes. However, there is little investigation on the psychological benefits of expressing gratitude to partners during the coronavirus 2019 (COVID-19) pandemic. Using a short-term longitudinal design, this study of undergraduate students (M age  = 20.31; SD age  = 1.81; n = 268) in the United States explores the link between expressing gratitude in romantic relationships, subsequent relationship self-efficacy, life satisfaction, psychological well-being, and the COVID-19 anxiety. Results demonstrated that expressing gratitude in relationships positively predicted subsequent relationship self-efficacy and life satisfaction even after controlling for age, gender, ethnic background, trait gratitude, and auto-regressor effects. These findings show that relational gratitude had incremental validity in predicting relational self-efficacy and subjective well-being above and beyond the effects of demographic factors and dispositional gratitude. This research emphasizes the psychological payoffs of cultivating gratitude in relational contexts.