You put one foot in front of the other, and get by one day at a time. This is not going to sort itself out for a while. Youre going to have to empower yourself, and digest the harm this person has done you. Go to work, start a journal, spend time on things that make you happy. But get over him, and get over yourself. You dont have to let him continue to hurt you.
And if you are waiting around for him to feel bad, you will be waiting a long time. If he has no conscious about it now, he never will. You already know all you need to know about the type of person he is. Stop being a victim, and start finding “you”. Its a big world, and you can be part of it.
Best of luck to you. You can do it…just take it one day at a time.