If we talk about real feelings, then I also knew married women who were not against getting new dates)) But I think that you are looking for something more serious. You should pay attention to local hook ups - https://www.nastyhookups.com/ I have a friend who was able to find a wife in two months of communication on the site. I still think he got lucky.

Online dating is always a lot of fun and it is a pretty interesting way to spend time with fun.