June 7th we will return to mediation.
I would like to return to couples therapy, But W said she was not interested only want to go to divorce mediation.
My therapist suggested that if that is what you would like to do maybe I could ask her.

Would that be a good idea? Is there any harm in asking?

Could say something alone the lines,
" Understand that you want to return to mediation, and I have agreed to that. I would like you to reconsider possibility couple's therapy as I have stated before."