I speak Spanish, because is it my mother language, and I go out with a Korean girl. It is possible that we have a friendship love. She does not speak Spanish, only English and Korean, while I speak English well (but I am still learn English) and I speak Korean at B1 level. We speak English, because for her it is very difficult learn Spanish, and I think I am going to move to Korea the next year for her.
My question is, should I not teach them Spanish (to her and maybe my babies).
I asked this because my family (my mother, sisters, father, etc.) do not speak English, only Spanish.