If it was me, I'd work out a way to go with him, if he dominates and/or it's non-productive, uninvite him for the next session.
She's your therapist, use her wisely and to help you with what you want her to help you with.
One last point, although $200 is a lot, how much is your marriage worth to you?
- Nobody has ever learnt anything important from happiness and success; problems make us grow - Consult your plan, not your feelings - If you haven't set goals, how can you expect to achieve anything?
