1. Counseling usually only works if there's a commitment to have no contact with the OM.
2. If she keeps asking about counseling, that means you haven't clearly stated your requirements for going. Next time she ask, you say, "I'm going to.counseling if there's a commitment to our M, if you aren't willing to do that, stop asking me about going to counseling". That clearly define your terms. If she doesn't respect that kill the conversation, and make it a boundary. Here's a place to gain respect and hold her too a boundary, this counseling situation and her talking about the OM to you are both good places to hold her to a boundary.
If one of these conversations happen again, I'm hoping to see a comment from you stating that you got up and walked away. With a statement like. "I told you my terms dealing with those situations and you seem incapable of respecting that so I'm leaving this conversation. Get up and leave.
Joejoe
M:37 W:37 T:11 M:10 S17, S13, S10, S4 BD:06/28/17 OM confirmed 07/20/17 Recon the M 10/29/17 Working hard:2gether
Onward and forward
This process is not a sprint it's a marathon! Patience, Patience, Patience.