With how much effort they put into binding and keeping themselves flat pre-surgery, I hope that their friends would have been more supportive that they could now avoid that pain and discomfort, but I totally get not telling them, especially that soon after the fact.
Also, I felt that body negativity hard when they mentioned getting sad from interacting with their chest just to keep clean. It’s nowhere near the same level I’d imagine, but it’s fairly similar to how I felt about my stomach and my own chest when I was heftier. Just needing to do something extra to take care of yourself because you have a feature you wish you didn’t have is disheartening, and even though I don’t have the same weight problem, I doubt I’ll forget just how self dissatisfied I was.