G, You have to do what your heart and mind are telling you to do. If you think that contacting him one more time and telling him how you feel and that you do not want a divorce, then do it...However, you must be prepared to hear that he may want to go through with the divorce no matter what you've said. If you do contact him, make it the last communication and if he wants to contact you, he will.
Sometimes, the more you contact them, the more determined they are to run from us. The pressure of the contact, the sound of our voices, etc. is too much for them to bear. So, be prepared for anything at this point in time.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.