I just think some indication you're dating other than a slight boost in flirty language and the 10 heart event. More than kissing, I want dates! Plural.
(There's a mod that lets you go on dates with your married partner, which actually does a lot to make married life feel a bit nicer, but none, afaik, for pre-marriage but post bouquet. And once again, mods, while I actively enjoy using them, are just not the same as written into the game.)