When people say you've changed, they usually mean you're doing something they're not willing to do. The speaker argues it's envy disguised as concern: you're forcing them to see their own limits, so they call you different instead of admitting they won't take the same risk.
The people who don't know how to say you've grown say you've changed, and they say it like it's a bad thing. The people who hate it, or the people who don't accept the new version of you, they downplay your success for being willing to take a risk that they were unwilling to take. Your success makes them feel bad, whether they say it or not. It does, because humans are comparative creatures. We look at one another. That's— we learn through modeling. We see what someone else does, and if they did something that we aren't willing to do and they have something that we don't have, we start not liking them because what does that mean about me? It's much easier to say, "He's changed and he sucks now," rather than saying, "I didn't and I suck." Mm, so hard.
