Do you think you felt broken at first because you like him more than you are admitting to yourself? But of course you wouldn't want to put more time and energy into him than he does with you as Jennifer said. You said you are not going to contact him again but if he contacts you--well, you said you are on different wavelengths but sometimes opposites attract (if you go no contact but he calls then he may be attracted to you). Say "yes" if you think you like him and see what happens. No expectations just get to know him.