In general, and for your own sanity, I'd say be honest with your boss and manager - say you got were bummed by the feedback, that you want to improve and ask wh

In general, and for your own sanity, I'd say be honest with your boss and manager - say you got were bummed by the feedback, that you want to improve and ask what they suggest for next time. If you still keep getting unwarranted. wrongly timed criticism, I'd say quit. The problem isn't you, and I'd imagine it would be too difficult to establish a good, long term relationship.