My boyfriend won't leave his wife yet he expects me to leave my husband, what should I do?

You would be absolutely insane to leave your husband. I can almost guarantee the other man will not leave his wife for you. If he does leave his wife you would remind him of the pain and suffering and would move on to someone else. Tell him to leave his wife and stay away for one full year before you would even consider leaving yours. It won't happen. I left my husband after 20 years and it was extremely hard. We knew each other inside and out, you don't have another life time to get to know someone else the same way. Please stay where you are, you are comfortable, you love your husband (maybe not romantically). Life could be a lot worse.