varian,,you sound like a 'softie.' Like you want to give the P.O. some benefit of doubt because he is nice,, but you felt ignored 4/5 yrs. That's plenty of time to prove how they truly are toward you and how you will be treated by going back. I am afraid the P.O. would just inform you that you are the one to change, for you to be forgiving, for you not to be stumbled and get back to all meetings and go door to door, as a "fix-all" for you to change.
I hope you can find a better network for you that would be more sensitive to your needs and health.