He may have not accepted the fact that you ended the relationship. Perhaps he wants to be the one to do so. OR he is not interested in separation (which you said had already happened) and believes that there is still a chance to have a relationship w/ you. He may have felt that after 3 years the relationship should either become more committed on his part and gotten scared of long term commitment. On the other hand he still wants to be with you but perhaps not invest much on his end.
You may want to point out to him the reason for you breaking up with him. That may be a clue as to his current behavior.
in your final paragraph i did point out for the real reason i broke up with him and he said we need to part ways. and have a good summer bye. i have not heard from him since.will i hear from him again or should i wait for awhile or should i move on. i love this man so much and i miss him. i refuse to contact him. i also told him no committment no us. i told him when he figures this out he knows where i am. was this wrong