SpaghettiCookie posted... My ex said that technically Kylo Ren could be alive since he died in a world between worlds
but I only see that happening if everyone comes together and says that it was crap but most people are praising it
That was not implied anywhere in the movie. That sounds like your ex's wishful head canon and nothing more.
---
"History is the road map and without it there is no way to navigate the future." - George Wunderlich