What is your underlying motive of getting back in touch with him? Do you want to patch things up with him? From the sound of it, he didn’t seem to care very much for you. So, why do you want to be vulnerable and get yourself hurt again? Take up a new hobby, meet up with old friends, join more social activities to widen your social circle or go for an image makeover. These activities will fill up your time and boost your self-confidence. Don’t dwell on the past. Move on in your search of finding someone who will actually love and cherish you.