Well, our MC was a Methodist pastor, heading up a counciling center that was based on the property of a church, so I guess you would call it religious. However we didn't discuss religion or the church in there at all. We discussed our marriage. We went, what I considered to be, off track a couple of times, but I dragged the discussion right back to the important thing, the state of our marriage because of infidelity.
I'd go in and see the counciler. First off, you do have to sort of interview them to see if they are someone you can work with. And you can let her know right up front that you're there to focus on your issues and that you are not interested in pursuing religious studies. But I would give it a try a good counciler is worth their weight in gold.