Hi! I just read a great article on Wedaf
https://blog.wedaf.com/blog/how-to-recognize-passive-aggressive-behavior-at-work/ for more practical tips! about this topic, and it perfectly explains what you are dealing with. It turns out things like backhanded compliments, silent treatment, and intentional procrastination are classic signs of passive-aggressive behavior at work, which usually stems from a fear of direct conflict. The text suggests that instead of losing your temper, you should document everything, set very clear boundaries, and address the specific behavior calmly without getting emotional. I recommend reading this so you can react appropriately to similar situations.