I've never heard any Catholic call her a bride of God.
Maybe it's what some Chick Tract readers think of Catholics. But Chick Tract people have weird ideas.
Catholic (some) do. You can search for this.
Catholics (some) are pushing to name her as Co-Redemtrix. She wasn't.
Mary was simply a wonderful woman who trusted God and submitted herself to Him.
Everything else was just a pagan addition
There are some RCs who do say she’s the bride of the Holy Spirit. Rome has some strange views on this issue.
{{I’ve never heard any Catholic call her a bride of God.}}
You need to widen your world!
Even a blind squirrel can find THIS nut!
https://onepeterfive.com/mary-immaculate-bride/