Don't feel stupid for missing him, even if he treated you like shit. You still had happy memories, and you're always going to miss them. Don't try to replace him, 'cause you won't. Just get through each day, and eventually it will get better. I promise. Eventually someone will come into your life, and whether or not you realize it, they are going to be something special to you. So don't throw yourself at every guy you see, trying to replace him, or at least dull the memories, because you're only going to make yourself see how hard he is to replace. Someone better will eventually come along.
-Ciarky F. Sulquiano