I can say I felt a lot of what you felt and your story reads similiar to mine.
we do make mistakes in this thing called MLC especially when we love our spouse. Our spouses have changed though. Its tough to grasp this change.
The day I grasped this change after much questioning, 2 x 4's from Mack, Eric, etc etc was the day things began to change.
I know your tired of hearing this but "be the change". I am telling you it does get better. That's why Eric, Mack, the rest of the gang is here because it got better for them and they can now help others through this mess. and...... not just getting through but having an amazing life on the other side of this.