Platonic marriage has such a special fluffy little nook in my heart because it highlights the importance of marriage being a partnership and not just the next step in a romantic ballad. Like these people don't have sexual or romantic feelings for one another but they acknowledge the fact that they love each other more than anyone else in the world and want to spend the rest of their lives together. They're best friends, a package deal, they are one. They might even raise kids together idk.