https://phys.org/news/2018-07-catfish-people-onlineit-money.html

Catfish will use this information to create a more appealing version of themselves, then engage in continued one-on-one interactions with another person (or people) who are unaware of the deception.

In the 2010 documentary, Nev Schulman learns that a woman with whom he has developed an online relationship over nine months is actually fake. Another married woman (who originally claimed to be her mother) has used pictures from a model's account to create the complicated, phoney relationship.