Even very bright people can be codependent since it relates to a person's sense of self as being unlovable rather than to any degree of intelligence. In my humble opinion, Dean needs intensive self-esteem counseling. I'm glad to see stories written here by men. Thanks Dean for breaking the spell. And frankly, that woman sounds like she has the emotional maturity of a two year old.
Blood is thicker than water, lady.
She needs a serious reality check. And don't go thinking she's going to find happiness elsewhere. First of all, I don't see why on earth you want her to be happy. She is a miserable person, and it is obvious she is that miserable because of who she is. I mean really, she must alienate a hundred people a day.