I do. One friend, who I've been close to since childhood, that I still see regularly. I don't know what I'd do if they decided to break it up or just disappeared without a trace. I made some friends during my final teenage years, but they always felt flimsy and liable to implode at any given moment, which was true. Into my 20s, I discovered how impossible it was to befriend other adults, not that I'm blaming anyone, that's just life and everyone's preoccupied and settled by then, but this has made me grateful for having a long-time friend and more vigilant of other people.