I have an unusual name so when I meet new people my brain focuses on their reaction to my name and how they pronounce it, so I completely zone out when they tell me their name. I might remember it for a short time but almost always I forgot their name if I don’t interact with them frequently.
I knew someone whom I worked with nearly every day for almost a year. Then we didn’t see each other for 4 months and I couldn’t remember her name. I didn’t know that it was an ADHD thing at the time and she thought I didn’t care about her. Not fun.