I don't want to offend anyone or anything but i have been reading the way of the king again and Jasnah struck me as very independent and strong will .. as evident by her atheism , probably because she knew almighty was dead through her spren and her visit to spren world...but her being gay will also explain why she hasnt married ! Roshar is a very sexist world as far as we know , with strong emphasis on masculine and faminine art , food etc.. I I don't think any of their culture will accept homosexuality ..They will probably claim them voidbringer and struck them in high strom for stromfather to judge which is essentially a death sentence unless you have a spren proecting you lol....However I strongly belive with her Radiant ability which allow her to travel between worlds in cosmera Jasnah is familiar with other cultures from distance world and therefore accepting her own sexual orientation although she might never openly admit in her own home world.