Dating non muslim
Perhaps a close friend or relative is considering marrying a Muslim. (I say "her" because the vast majority of cases are women.) Maybe your friend has already made up her mind to marry him.He is so nice, a real gentleman, and well-educated.
Our family was pretty upset about it initially as well but didn't disown.
In sum, she is not on equal footing with her husband.
You will note that I have focussed on marriage in Islamic law rather than on customs.
Here are several practical suggestions one might offer to help her sort things out.
She should first of all ask him if he has a wife back in his country--or elsewhere. She should also ask about his family: What will they expect of me (and of him)?