Afaik financial worries are a big reason why some women stay with abusive partners. This is gendered - many sub groups expect men to be breadwinner and women to be primary caregiver. So women are more likely to have no income for period of time or have child duties that interfere with work.

Contrary what OP wrote, typical result is that women becomes poorer after divorce and men had more money. (And no, alimony are nit given out like candies).

It is not only reason, but practically not having money and risking poverty or homelessness means you need to plan divorce very carefully.