Just because two people kiss doesn’t mean they would have worked or actually been meant for each other.
Or maybe the ending was meant to prove she and Kylo would have been together but now she’s alone and trying to figure things out through his family’s legacy.
The rest of the article contains spoilers.
At some point after we all have seen The Rise Of Skywalker another time or two and start processing what happened, we’ll be left to answer the question of what Rey and Kylo ultimately were.