It looks like he was so self centered that when he did not find what he was looking for he backed off. or shut off to him you may be a non-person, ignore him, he's not what you need in your life.
You need a positive shareing friend not a self centered problem child.
unfortunelatlly I do find my self "stepping back to reevaluate" the situation in a similar manner when my girl friend pushes a button that my ex trained me for but I hope this isn't the same. Some paths are not to be repeated, only understood.