I would suggest that you each see the C at least one time individually, so you can say what you each need to without worrying that the other will #1 interrupt, or #2 get angry. THEN...see the C together.
My H and I have done this and we found it VERY helpful. I have no doubt there are things he's said to our C that he would NEVER say with me there. I also found it helpful to talk to her on my own as well....I felt that way I could give her an accurate idea of what I viewed our problems to be (that's when I would let her know his drinking is a problem for you, and tell him how he behaves). This will enable the C to work around to each of your issues.
Just my thoughts. Good on you for calling the C!!!
