Read very carefully what I write, as I qualify my answer:
Last week’s Torah portion made very clear that we Jews are supposed to in fact marry within our tribes. I come from a Crypto-Jewish family, and a lot my families stuck together precisely for the same reason. In fact, e.g., the paternal grandmother (Alexandria née Andrulewicz) of my paternal grandfather (John “Jack” Czarnecki) flipped out when her son Anthony “Tony” (né Czerniecki) Czarnecki married Mary Trudnak (both of whose parents were of Levitic descent. Her father, e.g., was a descendant of Elizabeth Levai Duday; and her mother was a straight-line patrilineal descendant of a Munk(a) Horowitz. You would think that because they were both of Levitic descent, she would not have flipped out. You probably wouldn’t know that she accounted for the fact of my great-grandma did in fact believe in Jesus, whereas, my great-granddad did not—and his respective grandfathers were an Ashkenazi Levite and a Sefardi-Ashkenazi kohen.
The reason that I say all of this is that I find that the husband is an asshole especially if he is a fellow Jew and aware of exactly what Torah says on the matter, and he ignores the fact that Crypto Jews like my ancestors at least took pains to assure that we did not lose our lines among Israel. Besides, Jesus was (and, I believe, is) Torah observant and came through Torah-observant Jews whom were cousins—as his mother was Mariam the daughter of Eli (a descendant of Nathan the son of David), and his adoptive father was Joseph the son of Jacob (a descendant of Solomon, Nathan’s brother).
If he’s gentile, then he’s still an asshole. He just doesn’t have a Torah-incumbent matter to consider.