I can totally relate sometimes when i look back i have to think about it before remembering a last name etc.
I at one time plugged various names into Facebook on a chance i could see where some maybe.
I got in touch with a BF from high school and asked if she wanted to do lunch ( pre- pandemic) and she responded "NO , I think we are too different based on,,,,,,,,,,,,,,,,,,,,,," her looking over friends I had on Facebook guess they were not her cup of tea but really made me sad she was like that....... Makes me sad that you really can't go back.