boy, I would be so careful!! My parents had 9 of us, in the 1950-70 era. My mom was catholic and my Dad a convert. We sure had a lot of catholicism (school) around us, BUT the era was also, mingle with the protestants. We were more apt to have family gatherings with my dad's side more than mom's side. It was that way for many reasons.
It was brought to my mom's attention and mine(2nd oldest) that protestants can be saved too. See what we "do" says my aunt.
Result: After my dad died, my mother married, 5 years later, to a twice divorced man in my aunt's house and my brother saw it fitting to make it a double ring ceremony.
More results: Two sisters in adultery, two of no faith and the others left the catholic church and believe that anything goes, is just fine.
I have been hated and shunned ever since 1996.
My ancestors of 1847, left Bavaria, for the wars. Before the wars, Luther and Calvinist and such weaken Europe to have Hitler and Russia Communism take over.
For them to leave, they sold all, and took their chances and Trusted in God. Eight weeks on "floating hell" ships. And did best to make home in the US.
I would do my best to make sure you understand and the whole family understands why you are a Catholic. What you believe and what "they"don't. Why marrying a protestant is welcoming war. Actions speak louder than words.
That is why Holy Mother Church did not agree to mix marriages. I would frown very much too. That is how wars may come about.