50 mixed-gender couples (N = 100 individuals) were recruited via the introductory psychology participation pool and advertisements posted on the student portal in a large university in Singapore. To be eligible, participants had to be either a student at the university or at least 21 years old. Participants’ average age was 21.69 years (SD = 1.75, range = 18–27). Participants were involved in romantic relationships (63% dating exclusively, 37% committed to be married) for an average of 1.65 years (SD = 1.79, range =1 month–8 years). This study unfortunately did not include a measure of ethnicity. During an initial session at the lab, participants completed a questionnaire and were given instructions for completing the daily diary portion. After the lab session, participants completed a brief questionnaire about their day every night for the subsequent 14 days. On average, participants completed 13.87 diary records. National University of Singapore IRB# A-15-018