Hey I donāt think Draupadi was outrightly jealous type, but sheās human who behaved like any wife does because he was away from her from long time and i feel she was just testing him and s giving him hard time like wife, itās natural reaction.
Even if prathi was adopted he s still king son doesnāt matter whoās mother Draupadi r other queen, he should have been heir, but itās abhi (son o third prince)the only reason i can come up with s he s empress husbands son and first born and all loved him didnāt mind making him heir, itās only possible if arjun s empress husband, otherwise it would be prathi Draupadi r another queen son he s still king son. Who has more rights on throne than 3 prince son.
These foreign invaders I donāt think had such an intelligent brain to change whole story, because this s not our history but ithihaas, pancham ved, I donāt think they can made changes to such an extent which can change whole story, down years yes stories got changed and so much added, but one cannot change whole story, especially mahabharat this s such a tricky even we canāt able to understand still, and I donāt think they can add anything just like that especially polyandry, because polyandry s important to whole story and plays very important role to whole story and s conncted to all characters, they might influence thoughts but canāt change whole story, because basically polyandry was discussed in whole epic, the main reason y I canāt ignore s her interactions with arjun and bheem which s far from any bhabhi and devar. Even after so many invaders and rulers i think we pretty well saved our legacy, ya we lost treasures and knowledge but never legacy.
any we donāt even need foreign invaders for changed oour own arrogant men had done that job pretty well to justify karna. So these egoistic men r more than enough.