another reference point:
New Research Illuminates Self-Defeating Behavior - New York Times
Secrets of Defeating Self-Defeating Behavior
Chooses people and situations that lead to disappointment, failure, or mistreatment even when better options are clearly available.
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Rejects or renders ineffective the attempts of others to help him of her.
http://www.psychnet-uk.com/dsm_iv/images/bullet_grey.gif
Following positive personal events (e.g., new achievement), responds with depression, guilt, or a behavior that produces pain ( e.g., an accident).
http://www.psychnet-uk.com/dsm_iv/images/bullet_grey.gif
Incites angry or rejecting responses from others and then feels hurt, defeated, or humiliated (e.g., makes fun of spouse in public, provoking an angry retort, then feels devastated).
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Rejects opportunities for pleasure, or is reluctant to acknowledge enjoying himself or herself (despite having adequate social skills and the capacity for pleasure).
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Fails to accomplish tasks crucial to his or her personal objectives despite demonstrated ability to do so, (e.g., helps fellow students write papers , but is unable to write his or her own).
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Is uninterested in or rejects people who consistently treat him or her well, (e.g., is not attracted to caring sexual partners).
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Engages in excessive self-sacrifice that is unsolicited by the intended recipients of the sacrifice;
The behaviors do not occur exclusively in response to, or in anticipation of , being physically, sexually, or psychologically abused.
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The behaviors do not occur only when the person is depressed.