I figure you are going to get a ton of replies telling you that he is just trying to play you and make you feel guilty for breaking up with him due to the trust issues you had, but then you said you called him, not the other way around... so ?
Dont really think it matters; I remember your thread the other day and you really felt like you were not ever going to be able to trust him again even if he were off the drugs. Whats changed?
Also you said that you didnt like the way he treated you overall and that you desereved bettter. Whats changed?
This post sounds like your now saying your upset because he is not fighting for you? Why do you want him to?
And really think about it... your never going to be happy with him if you cannot trust him, and he wont be happy either. Who wants to be walking on eggshells all the time?
I say just leave it be. Do as he asked - dont contact him again, and block him just in case he tries to contact you.
Sometimes its just not meant to be. Other fishys in the sea.....