Dissatisfaction.
If a women (or a man) is actively dissatisfied with a part (or the whole) of their life, they experience strife and stress.
Now, perhaps (depending on the individual) this will materialize as "self as enemy" or perhaps it will be "other women as enemy" or "career/job as enemy" or even "spouse/child/significant other/family member as enemy" -- but the root is dissatisfaction.
Women are often seen as unhappy with their physical appearance (dissatisfaction with self) and are stereotypically seen as shoppers (trying to fix that dissatisfaction by 'dressing' it up differently). Women rearrange furniture to make their surroundings more comfortable, more appealing, more organized and/or efficient (the same way men do). And, rather than evaluating the cause, individuals (men and women) try to "fix" others to remedy relationship issues. All of these are attempts to remedy dissatisfaction.
Many people (men and women alike) change jobs or return to school, not because they are inherently interested in learning more or changing to another vocation, but merely because they are dissatisfied with the current one.
Dissatisfaction can be a positive motivator, but is often a negative agent for change. Assigning "enemy" status to any desire for change (whether self hate, hate of others, or less specific hate of living arrangements, job, family situation, etc) is a negative -- IMHO. The reason is because it assigns a tangible place to put blame for the inability to effectively evaluate the situation and make decisions on how to properly address and fix the problems.
Blaming someone else -- or hating yourself -- is easier than finding real solutions because the solution often involves objective self-evaluation on a level that goes a bit deeper than weight, appearance, job title, etc.