I have a problem that is somehow similar to yours. In Italian, the grammatical gender of possessive pronouns works the other way around, e.g. if a boy has a gir

I have a problem that is somehow similar to yours. In Italian, the grammatical gender of possessive pronouns works the other way around, e.g. if a boy has a girlfriend, in English you say "his girlfriend", "his" is masculine. But in Italian, possessive pronouns work the other way around ("la sua ragazza", where "sua" is feminine). To this day I still get it wrong sometimes e.g. if I'm tired at the end of a long day.