What i know ...and it need not be right but i always read this .
With the sedate Kunti it was a typical arranged marraige sober relationship .
With the younger vivacious Madri it was a love affair , one that ultimately led to his death .
Madri was the less sedate one , naughty , always challenged Pandu . She rode horses well and made the King laugh .
Kunti never showed any feelings about this but kept quiet .
It was Pandu who requested her to let even Madri get kids and Kunti respected his wish .
Later , Pandu could not control himself when once Madri , returning wet from her morning bath , fresh like the morning dew passed him . He had sex with her and died .
It was at that time that a grief stricken Kunti spoke sharply to her which was unlike her usual nature . She blamed Madri for his death . She said that as a woman she should have had more control .
Guilt ridden , Madri accepted responsibility and decided to go sati with her lord . She told Kunti to take care of her twin boys .
Kunti did . Sahadev was her favorite and the other brothers did not mind it but looked on indulgently . He killed Shakuni later .
Madri was not vampish and such back sassing to the elder queen Kunti was unheard of in those days . Neither was Kunti a devi . Both were simply women who suffered ups and downs .
This was what i read . This serial exaggerates and goes to extremes .