I wasn't a good friend to my drinking buddies. Just turning it round, the main reason I was with them was that they drank like I did, and when one dropped out of the group he was sadly missed for all of about five minutes. Nope, I used them like I used many other people. I was a user and a taker. With a friend like me, they didn't need any enemies.
I ddn't lose friends when I got sober so much as I stopped using them.