You may be able to find a therapist who can help you both deal with the big changes. And they will be able to help her get her anger out and dealt with. It can be very beneficial to go. Therapists aren't supposed to encourage divorce, they help keep the marriage together. You can do so much there without bringing the WTS into the picture, so she wouldn't have any conflicts. Her willingness to go will give you insight into she feels about your marriage.
My husband and I are going to therapy and it has helped so much. She focuses on why we fell in love, and how to keep the love strong.