Just add "- /marry remove <username>" to this list. I see a lot of people asking "How do you deny marriages?" so it would be useful since it's not a easy sub-command to guess like 'deny' or 'reject'.
HELLLOOOOO WHAT IS GOING ON HEREE Also swift what he means is that deny is the main subcommand in the updated friends plugin. Will be fixed when mattsturman updates it