It's always surprises me how some people that I least expected to, will remember things about myself I mentioned quickly to them about in passing. Even things that are small and insignificant. Weeks or months later they will bring up "yeah I remember you said you blah blah blah right?"
Meanwhile people I am much closer to and I expect them to remember, they will completely forget significant things about me, or even things between us that I myself see as fond and huge memories.
Enjoy any good things, even the little and menial ones, as you will never know what impending distresses could descend upon you in a moment.