From the what I get from that question, you sound like you broke up with him for attention from him, you expected him to call you and contact you and all that but I'm sorry to be the one to say this but maybe he has given up, no one likes arguing in relationships and if the two of you have broken up then maybe he just needs some time to himself. Give it a bit longer, maybe this is a sign that you should move on from him or perhaps he simply didn't care as much as you thought he did. If you said recently he's been a jerk, then why would you want him back? If he's a jerk to you and not worth it and you should find someone who treats you right.
A break up means a break up, doesn't mean that you always get back together or become good friends straight away these things take time to heal. Give him some time to think about everything and see how things go. In the meanwhile just have a laugh and have some fun with some friends and enjoy yourself with your new stress free and commitment free life!
Good luck (: