I like my cousin Cathy, because she is very close friends with me for the last six years. Is this a normal relationship?

My wife comes from a background of a controlling, abusive mother who always told her that she was incapable, and then a controlling, abusive (now former) husband who always told her that she was incapable. She is also on the Autism spectrum, in the region that was, until recently, known as Asperg...