When we really see other people as they are without taking it personally, we can never be hurt by what they say or do. Even if others lie to you, it is okay. They are lying to you because they are afraid. They are afraid you will discover that they are not perfect.
Don’t worry, he’ll miss you. You’re the best he could get, and he blew it. Don’t let him think for one second that this was your fault. It’s not. He screwed up, and you did absolutely nothing wrong. You gave him your heart, and you trusted him to keep it and protect it, but he couldn’t. And honestly, he’s not mature enough. He’s not smart enough. If he was smart, he would have cared for you with every fiber of his being and been with you every spare second he could. But he didn’t, and now he’s gone. But don’t you cry. Don’t call him telling him you miss him. Don’t IM him, don’t message him, don’t comment him, don’t talk to him in the hallways. Just pretend you don’t care. And don’t be surprised when he comes crawling back saying he made a mistake. And if you want to go, go with him again. But make him work for you. Don’t be his doormat. Don’t let him in the first time he rings the bell. Make him come back every day until you trust him enough. If he doesn’t come back after a couple of tries, just let him go. But if he comes back everyday, he might be worth it.