When wedding bells (not yours!) are ringing

CoastalGal99 wrote us recently with some unsettling news:
“My eight-year-old daughter came home from her dad’s this weekend and announced, ‘Daddy is getting married!’
I didn’t even know that he had a girlfriend! My daughter explained that she was introduced to ‘Daddy’s new wife.’
But she asked me if she should call her ‘Mommy,’ too.
Later that night, [...]