Why do you want him back? Do you think he wants you back? if you think theirs a remote chance that the two of you can patch things up then you should start thinking about how to get your ex boyfriend back. You need to plan ahead and think ahead. Figure out what you did that annoyed him or if you left him heartbroken you have to proactively mend that heart of his. If you stabbed his heart selfishly you will have to put in overtime to make him trust your love again. If your not willing to do this then you don’t deserve him back.