By "lost a lot of friends" do you mean you fell out, they died, you just lost touch with them? If falling out, how? I'm interested because one of my friends fe

By "lost a lot of friends" do you mean you fell out, they died, you just lost touch with them? If falling out, how? I'm interested because one of my friends fell out with me this year sufficiently that he said "I don't want us to be friends any more". I was shocked and didn't know why. From what he told me it was the result of me making a few comments about his life in a flippant manner that I thought he was amused by, but actually he took it very very badly over the following few days and decided to not be friends any more. It's the only time I'd say I'd "lost" a friend. If I worked in startups and business I think the chances of losing friends would explode though. It seems there's huge potential for making rational, business-motivated decisions that others perceive as immoral or backstabbing etc. Is that what happened to you?