[asthar]

It sounds like emotional support from your boss is important to you. It also sounds like your current manager isn't someone who can provide that (refusing to talk validates this). I personally think that your work place should feel psychologically safe and should enable you to thrive (very important for your long-term career success). You are probably feeling let down by this event and your wanting to quit is a fair reaction. You probably should. But I'd recommend making a plan, getting a job somewhere you'll find that emotional support, and then quitting. Also, because the market is kind of weird right now. All the best!