I remember writing morse code letters with my then girlfriend while in my last years in school. back then I was able to fluently read and write morse. We didn't

I remember writing morse code letters with my then girlfriend while in my last years in school. back then I was able to fluently read and write morse. We didn't want others to be able to easily read what we wrote. It was in the late 90ies and we were so sweetly naive. Today, except SOS, I can't read/write anything in morse.