That’s what I got as well. I had so many questions.

Back at a time when I naively worked 80+ hours every week, I had a doctor lecture me about slowing down saying, “if you want to have a heart attack at 50, keep doing what you’re doing.”

Naturally, I ignored that advice. What made me stop was the realization that my employer did not care about all the nights and weekends that I gave up for them. It was totally meaningless to them. Just as meaningless as OP’s nights and weekends are to their boss.

The cornerstone of any good relationship is honesty. Without that, everything else is sitting on a bad foundation.

Your little bro is in for a bad time but some people just have to learn the hard way.