ugh, yeah, what a jerk. i'd like to tell you not to call back, but at this point - what the heck? may as well do whatever you feel like doing in this situation, because it seems you're not going to get the response you want anyway. just be mindful of yourself though. it sounds to me like this is like the 'cycle of abuse.' like he's abusing you, you're the one to say "sorry" and then grovel back to his feet. i don't know, but that's the first thing that came to mind when i read your post.

anyway, i think the main thing to take away from this is that despite what it seems on the surface, you've moved on. for one, you've found a good therapist that you are working well with. and for two, you're done working with this guy - so a few phone calls here and there aren't a big deal in my opionion. just do what feels right for you in this situation, but when you're able to step back - please recognize that you deserve WAY more than this.