When you change, some people will act like you betrayed them. Often they’re just scared of changing too.

Somebody changing nearby can feel like an accusation even when nothing was said. If you stop drinking, stop skipping, start working, the other person suddenly has evidence that their own arrangement was a choice rather than the only option. The hostility is usually about that rather than about you.

Try not to answer it with a lecture about how you have changed. Carry on quietly and leave the door open for them. Some will come round in a year, and the ones who do not were never really arguing with you.