My observations - he seems regretful of his actions and that's very good. He didn't just come back because he fell out with OW. Something is sustaining him now thu' all your emotional turmoil ... build on what you have ... seems like you want to hurt him to get even ... that's been the pattern all along ... its the human tendency. Let him lead ... Go on the trip ... see where he leads you ... you are not in control and never were ... also get the best professional help available as others too have suggested ... capitalize on where you are.
