Naw he wouldn't divorce her, because he can walk all over her so it's to his own advantage to have her. Besides, they have 2 kids now, so that also complicates things.
coccoo is right...you realize how lucky you are when you hear stories like this. My mom is divorced and my khala had the audacity to say "humaray family mey sirf thoom ho giskey divorce ho hee hai"
In the meantime, two of her own daughters are married to monsters....and they probably will never get divorced from their husbands...
As the classic saying goes, "What goes around comes around."