I resonate so much with this, it felt very easy to fall out of touch with people that I had closer some time ago.

I've actually started building a more niche version of cal.com|calendly that focuses exactly on this but with a twist for coffee :) the main differentiator being setting a "time limit" that reminds you to meet X. Very similar to this A,B,C or D system.

It feels robotic, but if it helps someone that's enough for me.