Stop crying about it and think why it isn't working out. Does your bf know it is not working out? is he taking it as a serious relationship? Are his expectations as intense and realistic as your own? What is your normal may not be his.
brindle im sorry but you seem to be young so ill tell you what i told my daughter .. in this life we must experiance every emotion and deal with it. grief , joy , love, hate , loathing , passion and despair to name but a few but next year it will be different.
i think it's ok to cry a little if you have a great bf. every now and then i'll get a little teary if he is being really sweet, or kind or funny or caring. I just seem to be overcome with emotion!