How to treat your transgender girlfriend

I don't really want to use grease as an example, except for the soundtrack. The moral of the film is "change yourself for love". But! The film has at least taught us a lesson: Danny Zuko looks like a fool when he's trying to be cool in front of his friends. If you want to impress your friends, this is who you are. It's good that you treat Nonna differently than you treat your colleagues. But the way you look around your friend should be very similar to the way you look around your transgender girlfriend.