I want to start off by saying that I am really sorry you are going through this right now and I want to commend you on your efforts to become Scotty 2.0. Self care is really important right now.
I hope now that you have taken it to heart that anything like the Pastor meeting which is pressure is going to work against you. Because of past behaviors, childhood hurts, brain chemicals and hormones she is sure she is doing the right thing in the pursuit of her happiness. The more people try to tell her she is doing the wrong thing the more she is going to want to prove them wrong.
It's very common for your friends to tell you want you want to hear because they care about you and don't want to see you in pain. I'm not telling you to give up hope but what I am telling you is that important to move forward. Detachment becomes very important and grieving the end of the marriage. Know that this is happening and it isn't happening to you. Everything is happening exactly the way it's supposed to and your likely not to know why until years down the road.
The important thing is you are learning from your mistakes and and becoming a better man which is a gift to the world and some woman down the road. That woman could very well be your current wife. Only time will tell!