Can you add a Space in the placeholder for this one %marriagemaster_heart%
Because when I add a space after the papi, every unmarried player has a wierd space before his name which I wanna avoid
Thanks

You can change how the placeholders are formatted in the language file.
You can change the Placehoders.Heart.Married value like this:

Placeholders:
  Heart:
    Married: "&c<heart>&f "