Typically there usually is someone heartbroken when a relationship ends. Many just don't end amicably. So, he's an asshole for hurting you, or he's an asshole for letting you go to deal with the pain so that you can find someone better suited for you to date? Which is better?
Pretty much you're stalking him, and that's kind of pathetic. You should value your time and energy a lot more than that.
"Well, then," the Cat went on, "you see a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad."