TLDR translation: Israel doesn't want its foreigner service industry drones - brought in from places like India to work for a few shekels a day running around for Shlomo - to make relations. I'm not (just) talking about relations with Jews, relations even with each other. If they suspect that a couple is living together or otherwise doing a relationship/family kinda thing, one or both can have their work visas terminated and be sent home. They do this because they worry that these laborers getting into relationships means they might try to establish permanent residency in Israel, and apparently foreigners establishing themselves in your country is BAD thing when the country in question is the Jewish state.