It's interesting how we are attracted to people that make us feel comfortable or puts us in situations we are used to.  Of course, no-one intends to marry people who resemble or act like their parents.  However, in life, we are pulled into or away from certain situations based on those foundations through our parents or the lack of parental presence.  Make sure you are doing what you can to resolve issues and relationships with your parents so that you can free yourself from entering unhealthy situations.