When romantic partners cohabit, sharing similar feelings and perspectives about the transition can lead to increased relationship satisfaction. Recent research published in Social psychology and personality science Evidence shows that couples who are aligned on this major life event tend to be happier together. However, this shared perspective does not necessarily increase during the first 6 months of cohabitation.
Living with a romantic partner represents a major life transition that both people experience at the same time. The physical act of sharing a home is a communal event, but different people interpret the experience very differently. Some may see this transition as an exciting and very predictable milestone. The other person may feel stressed about giving up their independent space and view the move as difficult.
“Big life events are often experienced together with close people, such as moving in with a partner, but research has traditionally focused on individual rather than shared experiences,” said study author Carla Friedner, a researcher at Humboldt University Berlin’s Department of Psychological Assessment. “We were interested in whether examining both partners’ perspectives could provide new insight into major life events and the relationships in which those events occur.”
Psychologists refer to these subjective interpretations as perceptions of events. Recognizing an event is more than simply recognizing that something has happened. This includes a multifaceted evaluation of how an event made you feel, how much it affected a person’s life, and whether it changed their worldview. Measuring these subjective emotions allows researchers to better understand how life vicissitudes affect human psychology.
“Cohabitation is a particularly interesting example because it is an important change that both partners experience at the same time, but may perceive it differently,” Friedner said. “For example, one partner may perceive a move as very exciting and positive, while the other partner may perceive the event as quite challenging and stressful.”
“We wanted to understand whether partners view this experience in the same way, how well they understand each other’s perspectives, and whether these shared understandings are associated with relationship satisfaction,” Friedner explained.
There are theoretical reasons to expect that romantic partners may develop awareness of similar events. Shared reality theory proposes that individuals are driven to create common internal states with those close to them. People want to align their thoughts and feelings about the world for two main reasons. First, sharing a point of view helps people believe that their point of view is valid and accurate. Second, agreeing on how to interpret the world fosters a strong sense of social connectedness.
To investigate this, the researchers analyzed data from 400 participants who made up 200 opposite-sex couples. These participants were part of a larger ongoing research project called the “Personality Study of Couples in Everyday Life.” Most of the participants were university students or young working adults in their mid-twenties. The majority of couples were unmarried and had been living together for less than 4 weeks at the time of initial assessment.
To track changes over time, couples completed the survey at two different time points, six months apart. To measure how they viewed this movement, participants filled out a customized version of the Event Characteristics Questionnaire. The survey asked people to rate their experience across nine specific dimensions. These aspects include how positive, predictable, challenging, emotionally significant, and impactful the movement is.
Participants provided two different types of ratings on this survey. First, participants reported their personal impressions about cohabitation, which also served as a self-report. Then, as a partner report, we inferred how the partner felt about the event. The researchers also measured each person’s relationship satisfaction using a standard seven-item survey.
The data showed that partners tended to have very similar perceptions of what living together is like. Their answers were much more consistent than those of randomly paired strangers. This overlap is not simply due to a concept known as normativity. Normativity refers to the idea that people may agree simply because it conforms to cultural norms, such as the common social belief that cohabitation is a happy occasion.
“One of the interesting findings was that the partners’ perceptions of cohabitation were more similar than one would expect based on the general view of this event alone,” Friedner said. “For example, partner similarity cannot be fully explained by the common view of cohabitation as a positive and predictable event.”
To account for this cultural context, researchers used statistical models to isolate couples’ unique and idiosyncratic emotions. They found that beyond standard societal expectations, the couples shared a true unity in their specific views on transition. In addition to sharing their actual emotions, participants were generally better at guessing how their partner felt about the move.
When couples had higher self-reported emotional similarity, they also reported higher relationship satisfaction. Being able to accurately infer one’s partner’s emotions also led to greater happiness in the relationship. Interestingly, believing that your partner feels exactly the same way (known as perceived similarity) was also associated with increased relationship satisfaction.
“We also found that couples who viewed the cohabitation event more similarly tended to report higher relationship satisfaction,” Friedner said. “However, this association is no longer significant when average perceptions of the event are considered, suggesting that sharing such a common perspective on the event may play an important role.”
The researchers followed up with the couples six months after the initial study to see how these dynamics had evolved. The data showed that this similarity of perceptions did not strengthen over time. Rather than increasing, overlap in partners’ perspectives remained relatively stable. Furthermore, changes in how partners similarly viewed the event were not associated with changes in relationship satisfaction over that 6-month period.
“Contrary to our expectations, partners’ perceptions of major life events were generally not similar after six months,” Friedner noted. “We anticipated that by sharing and talking to each other about this important transition, their perceptions might converge over time.”
“However, we cannot rule out the possibility that partners’ perceptions of events may have been more similar immediately after cohabitation and before the first assessment took place,” Friedner added. This lack of long-term convergence suggests that people may choose partners who already process the world in a similar way, or that adjustment occurs very quickly in the first few days before researchers can measure it.
As with all studies, there are some limitations to keep in mind. One problem is the lack of information about how happy couples were before deciding to live together. Without pre-event measurements, it is difficult to establish direct cause and effect.
“One important limitation concerns causality,” Friedner explained. “Although it is possible that recognition of common major life events contributes to relationship satisfaction as well, the reverse may also be true; that is, partners who are satisfied with their relationships may be more likely to have similar perceptions of shared experiences. Therefore, our findings cannot determine the direction of this association.”
Another limitation relates to the specific wording of some of the survey questions regarding external control. Some participants found these questions confusing because cohabitation is usually a voluntary choice rather than something forced by outsiders. Although the researchers noted this small issue, removing these specific questions did not change the overall statistical results.
The specific events being studied also have limitations. Cohabitation is just one type of shared milestone in a relationship, an experience in which both partners actively participate. Other major life events, such as a serious illness or the birth of a child, can cause very different reactions between partners.
“The next step is to see if similar patterns emerge for other major life events, such as becoming a parent, and for other types of intimate relationships,” Friedner said. “It is also important to investigate the process by which partners develop similar perceptions of shared experiences and whether these perceptions have a causal effect on relationship satisfaction.”
The study, “Similarities in Perceptions of Major Life Events and Relationship Satisfaction in Romantic Couples: The Case of Cohabitation,” was authored by Carla Friedner, Janina Larissa Buehler, Cornelia Urzas, Luisa Schelling, and Kai T. Horstman.
