If I understand correctly, it describes a man that only has casual relationships with women. The implication being that all woman only want long term committed relationships, and any man doing this must be somehow exploiting or tricking the woman.
Nowadays, it is widely accepted that preferring casual relationships is within the range of normal preferences for both men and women- some people prefer it, others don't. If both women and men can choose and prefer consenting casual relationships, the concept that a man can be a "womanizer" seems to be paternalistic and infantizing to women. It also implies some sort of old fashioned 'duty' on the part of a man to essentially marry anyone he dates, even if they realize they are incompatible, and neither has a desire to stay together.
I also personally think that there are multiple parts of the book that have been "spiced up" because that's the kind of personality he has.
Why are you so shy about simply naming specifics on a subject you claim is widely known and easy to find information on?
Are those the self-promoting drives you refer to?