...in real life understands things so slowly, and still I cannot say it to her, because she is my oldest friend -- oh no, not the oldest any more, because one guy who I met in first grade and who was my schoolmate for the next nine years contacted me last year, we met, and went to see another friend that I met first when I was 11. So these are even older friends than that woman.
Why are so people so slow, NFiH? :) Some people do not understand hints.
Once before, in the 1990s, I noticed that she does not understand hints at all. But... most people don't.