Your growth can make people uncomfortable because it reminds them of changes they keep postponing.

Someone reacting badly to your change is often reacting to their own postponed one. Your new routine, your new standard, your new pace can read as a comment on theirs even when you have said nothing. It is rarely malice. It is a mirror they did not ask to look into.

When a friend goes cool on you for no clear reason, resist both arguing and shrinking. Stay warm, keep doing the thing, and give them time to catch up to the new version of you. Some will. The ones who do not were never about you.