SAD STORRY!!!! See how a lady said his pastor ruin his marriage

Good evening wonderful Nigerians and naira landers.
Please take your time and read cause this might be a long post.
NB: Exclusively for natured and experienced minds, your comments and are expectedly welcomed.
My cousin has complains she's tired of her marriage.
She has been married for 5yrs and have four children (a set of twin girls and another boy and girl).
She has on several/most occasions been a victim of domestic violence, the husband spends most nights outside the home, comes back drunk, easily infuriated and top of it all an egoistic being.
My cousin has been enduring without telling anyone because of her ill mother(don't want her to die of heartbreak) and for the love of her kids, not forsaking the endurance based on Christianity belief.
Now her mum is gone just some days ago, pathetic as it seems the husband didn't show any sign of pity or sympathy, he started making threats of divorce accompanied with abuses calling she and her siblings "useless orphans,your sorrow just begin" and more despite the mourning state.
Now, she is clearly confused on the decision to take.
*To proceed with the divorce , noting the expenses of child rearing on a single mother. ( She's a qualified and educated Nurse)
*To seek or perhaps accept apology if who knows her husband apologizes like he always does. ( bearing in mind the level of threat, high level of domestic violence and mental distress she'll continue to undergo.)
Help her make a decision.
Thanks as you comment wisely and naturedly.