If it is he who decided to break up the relationship then it is unlikely that he will change his mind, however if you did your part in apologizing to him let it go, it's either he's hurt that much or he just found an easy way out, just learn your lesson and move on, don't dwell on it too much, no matter what it is, there is always a limit to what we can do and ask for... Life is a gift, Live it well...