Why do people make public displays of affection on Facebook?
In a study in which they surveyed people about their Facebook behavior and inclinations, researchers concluded that couples who cram newsfeeds with declarations of their love for each other may be trying to mitigate their own fears of rejection.
The researchers from Albright College in Pennsylvania found that users who fall into a certain self-esteem category, called Relationship Contingent Self-Esteem (RCSE), tend to hang their self-esteem to an unhealthy degree on how well their relationship is going. Such people, according to the researchers, tend to post more affectionate relationship content on Facebook. These users were also more likely to brag about their relationship and check up on their partner’s activities via Facebook.
They also found that introverts and neurotic individuals are more likely to spy on their partners on Facebook, as well as show off their relationships.