Both have women from the future who infiltrate the royal family and shake things up. Two princes vying for the girl. Misunderstood "black" prince with a grudge against the world, who suffered terrible mistreatment as a child, experiencing the healing power of love and caring.

Parents insisting marriage goes ahead with toxic partner despite stale relationship. New partner not seen as feasible because of familial responsibilities. Navigating their way out of the eye of the storm with their love intact.

Similar reason to divorce much loved husband. Joins his company for revenge once he's successful but the old flames of
passion are reignited. Gets a lot of satisfaction through work environment. Co-worker who falls madly in love with her etc.