I myself only recently found out about cheating on the Internet. I came across this article https://toplovehacks.com/physical-signs-of-infidelity/ . I learned a lot of new things for myself. The site describes many reasons why cheating happens, and there are many methods of dealing with it. If you really want to test your relationship for fidelity, this site will definitely help you. I was satisfied with the information I was able to find on the site. I recommend it.