This assumes people are faithful in their relationships right? I wonder if any dating sites have quantified the churn rating for their usage and does it correla

This assumes people are faithful in their relationships right? I wonder if any dating sites have quantified the churn rating for their usage and does it correlate with wider trends in dating such as average length of relationships % of people who cheat on a regular basis. Or are the subset of people who use dating apps those who tend to be in and out of relationships more?