I used to work in a counseling office and can see the supervisor's point of view. It is hard for a counselor to switch from marriage to individual(with only one partner) or from individual to marriage counseling. My counselor told me the other day that he could not do any marriage counseling for my husband and I because he would already feel like he was more on my side.
I would just look for someone else and not take it personally. He has to do what his supervisor says and he may have spoken out of turn when he first said that you could continue individual with him. I know it's hard to find someone you can relate to, but I think you will be better off in the long run.
Good luck. It sounds like you have been through a lot. I hope you find someone soon.
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Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha