"Yeah well she probably would have found out anyways."

The day that Snake was about to leave for university he apologized to Joey for talking about Joey's affair with Tessa in front of Caitlin. Joey admitted that Caitlin probably would have found out eventually. Does anybody think that realistically Caitlin should have found out sooner than she did? Joey and Tessa weren't exactly discreet about their affair. On their first date they went to a movie and a pizza joint. Then later in the episode they were at the beach. Finally there was a scene where it looked like they were at a park having ice cream cones. Since they were shown at several public places together you would think the "wrong" person would have seen them and told Caitlin about it.