Husband, John, and wife, Jane, have relationships with other people. Jane has a boyfriend named David, and John has a girlfriend named Sarah. John and Jane have met each others other partners. John and Jane go out on dates at least once a week with their boy/girl friend. At least once a week, John will spend the night at Sarah's place, and Jane will also spend the night a David's once a week as well. Sometimes, John will have Sarah come over to his and Jane's house to spend some time, and sometimes, Jane will have David come over and visit with her.
Recently. John told his wife Jane that he does not like David, and does not want him coming over to their house. However, he keeps bringing his girlfriend Sarah over to their house. It really bothers Jane that John seems to have a double standard for himself because he can continue to bring his girlfriend over to their home, but he refuses to allow Jane to bring her boyfriend David into their home.
What should Jane do? How should she handle this situation? What advise do you have for Jane? What advise would you have for John?