From all I know based on your posts, hope, I think the best closure here would be cutting it clearly and for good on your end. No more contact whatsoever. Just think about the opposite: how could it possibly help you to continue chasing him and he would probably continue hurting you? You mentioned on another thread that you found a good therapist now, so perhaps the thing to do is to talk with this new T about your past experience and really steer clear of the old one. Otherwise it may never end or may end in an even worse place.