@WendyLopez43 They do have doctrinal differences, but "Christian" means "of or pertaining to Christ", as an adjective, and, as a noum, an adherent of His teachings.

If you look up an article on Martin Luther, it will outline the main points of difference between the Lutheran Church & the Roman Church, and many of Luther's objections were carried into Protestant churches.

The Eastern Orthodox Church(es; they tend to be by country, but all flow from the "Eceumenical Patriarch",the overall head of the Eastern Orthodox Church) split from the Roman Church in the 11th century, long before Luther's split in the 16th century, and on quite different grounds.

There are other top-level branches, as well.

They are all Christian, but tend to differ in theological details which are quite bewildering to at least the casual observer.

@SomeMichGuy the question should be clarified to say “is anyone a catholic married to someone else from another branch of Christianity?”

@DoubleRings I am sure what is meant is:

"Do Roman Catholics intermarry with other Christians?"

because I'm sure that the OP means the first phrase, and might mean "Protestants"--rather than "other Christians"--for the end.

Even many Protestants don't realize the jostling in the "Catholic" line...!

@WildWings

I know, right??

@Soossie yes. Catholics and Protestants are Christians but Wendy Lopez who wrote the question is unaware of that.

@WildWings @Soossie Catholics and born again Christians for instance have differences in belief and practices (ex: about sculpted idols). I think that's what the poster meant. I can see why a couple made from these two may face issues.

@FreeSpirit1 they like to distance themselves from each other

@WendyLopez43 Well us humans often choose what divides us, not unites us.

@SW-User it has gotten a little better though.

When i was a kid, the nuns told us that Protestants were doomed to hell.

@SW-User I heard the same stuff to. The nuns got mad at me when I asked if Jesus was Jewish and was going by a strict form of the Hebrew religion then why aren't we all Hebrew rather than Catholic.🤣

@Theyitis Seriously? You "thought". I doubt that. Catholicism is alive and well in Texas, as is all other Christian faiths.

@TexChik They don’t have Catholics in southern Missouri, that’s Protestant country.

@Theyitis about 6 missouris could fit into Texas. Its a big state, lots of beautiful churches.

@Northwest The unqualified term "Christian" means a follower of the teachings of Jesus, the Christ.

That includes Monophysites (who broke off long before Chalcedon), the Roman church of the sole Western/Latin Patriarch, the Orthodox churches which sprang from the three, then four, Eastern/Greek Patriarchs, and the many reformations of that, including the Lutheran Church, the Church of England/Anglican Communion, etc., etc., etc.

If someone means something else, they need to be up front in qualifying it.

Esp. the "evangelical" Christians, who may not even evangelize, and even don't seem to be familiar with the contents of the evangel.

@ronisme1 So you are both Christians.

@WildWings I see it that way, sorry, don't want to get into this. She doesnt

@ronisme1 OKay. No probs.

@BabyLonia And both of those are the "true" Catholics!

@acpguy "Christians are nothing more than Catholics" Would you like to explain that one? 🤔

@WendyLopez43 If you think Catholics are not Christian, you are sorely lacking in the very basic education needed to form a coherent argument.

@SomeMichGuy they act like they're different...

@WendyLopez43 There are definite differences in theology, teachings, emphasis.

But they are all Christian.