> This in and of itself makes me want to quit, because it's disingenuous to say that I'm one of the most valuable engineers, then talk about firing and rehiring

> This in and of itself makes me want to quit, because it's disingenuous to say that I'm one of the most valuable engineers, then talk about firing and rehiring me when I want to take this leave. I agree that this is a red flag. Unfortunately in work life, companies can say one thing and do another, and it looks like you've experienced that here. I think you have done the right thing by taking time off. My advice would be to seek counselling and ask about medication to help treat your depression. Even if it doesn't solve it completely, it should at least give you a bit of breathing room to afford you a broader perspective. From there, you can hopefully make the best step forward. Best of luck to you, in all sincerity. You sound very talented and capable, and I'm sure that latent skill will serve you well in any future role regardless of the temporary setbacks you may encounter.