I think just bringing the past storyline back would be great way to explore those feelings. maybe the have been real? maybe both still feel for each other but do not trust their feelings.
Even if Scott and Jean stay together, which they will......I think Marvel should be contemporary enough to let Jean and Scott really have an open relationship or polyamorous relationships. It is soooo common. Why is it so difficult to show it in a comicbook in 2023?