the whole co-dependent label was big in the 90's or late 80's. My mom read a bunch of books and was always quoting them. I can't remember any of them, but I have to say that I gained a lot of insight from the analysis.
I am not up to date on the circumstances you are referring to with butthead, but my knowledge of the co-dependency stuff comes from history of alcohol abuse in families, even if your parents didn't drink, if there was an alcoholic in their parents lives, the effect is passed on.
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