Since the actual Naruto literature gives us very little insight into this wonderful and complex relationship, here's a post-war, pre-epilogue story of Sasuke and Sakura (compatible with canon. Manga and Novels). It traces the initiation of their relationship, figuring out what they mean to each other, the struggles they go through being apart, their journey together, their wedding, their marriage, and all the sacrifices they make for their village and their nation, but mostly, for each other.