Rey probably won’t get married or have a family. Disney shows very little interest in adding any romance to Star Wars. The Force Awakens came the closest, implying a potential Finn/Rey romance, but that was promptly deleted. TLJ suggested Finn/Rose as an item, but put very little effort into developing that, and Disney clearly was much too scared to actually commit officially to some kind of fucked up Rey/Kylo romance. And Rise of Skywalker was directed by Mel Brooks, as the long-awaited sequel to Spaceballs.