I was quite surprised when a couple of the group members quit after the meeting. It just goes to show different people perceive things differently. I thought we were a group of authors working together and trying hard to improve our craft. Clearly, some members did not have that same impression.
I am reminded of how difficult it can be to get critique, especially if you aren't experienced at it. I've been trying to write seriously for over a decade and have gotten a lot of critique in that time. It's still tough to hear your work, your baby, isn't working for readers. But, I've learned how to deal with it. Carefully consider what your critique partners have to say--they are trying to help you, after all. Accept some suggestions and reject some.
The bottom line is: you don't have to listen to everyone's advice. It's your work.
Good luck with your critiques!