I used to date this guy a long long time ago. Of course he was Jewish. But his sister was married to, and had a baby with an Arab Muslim. Ironically, this woman used to be married to a somewhat observant Jewish man who was involved in the mainstream Jewish organizations. Anyway, the first husband left her for a non-Jewish woman. So then she ended up marrying an Arab Muslim.
Anyway, the guy I used to date turned out to be a major weirdo as well.