I was married in a Catholic church; you can see the photos. However, it was not a full Catholic ceremony because I am Methodist. Apparently you cannot accept that someone would voluntarily choose to not be Catholic? And you’ve never heard of a Catholic and Protestant marrying?
Go talk to your local deacon or priest about mixed marriages. They can be performed in the Church, at least here in Seattle. Deacon Bob and Father McKay were fine with it, and Brother Pettit from my old high school even came.
Now, to lighten it up - when the deacon got to the part with the Lord’s Prayer, everything was going great. Until he stopped - along with the Catholics - to let the celebrant say the end. My side - the Free Methodists - kept going. Raised a few eyebrows.
Trust me, I am not Catholic, I was never baptized Catholic (mom was a Jehovah’s Witness until I was born and needed a transfusion - that broke her from that cult quickly). I went to Catholic schools, and I went to the Free Methodist church on the weekends and Wednesday nights.
And for me and my wife (who was baptized and raised Catholic) we find spiritual fulfillment and a deeper connection with God at the FM church, not the Catholic church. It’s nothing to do with “knowledge” or “understanding” - I’ve got the resources and the training to know. But I made a decision and the fact that so many Catholics cannot accept that says more about your own shortcomings and ignorance than those who choose to be Protestant.
Shoot, my ex-sil, a non-practicing Catholic, was married in her mother's Catholic church to a non-Catholic! I don't know if he was even a believer ~ they never went to church during the time I knew them. Then when they divorced, she had her marriage annulled by that same church, thereby basically making their two children illegimate.