I'll repeat my earlier advice--what you need at this stage is an individual counselor, not a marriage counselor.

I'd cancel this appointment and make an appointment for individual counseling. If you'd like to use this counselor for MC down the line, I'd find a separate counselor for IC.

Me: 44
H: 44
Kids: 20, 16, 16, and 10
Together/Married: 22 years
H announced he was emotionally detached and considering D: 4/4/16
H announced he is going to try to stay and reconnect: 5/1/16