How can guys just do stuff with out any remorse?

OK, I am really sorry that I have not been on at all in a really long time. I've been real busy with my school work and my parents and then my boyfriend and final exams in all of my classes. You know how if you stub you toe when you get up that it's been a bad start to the day? What if your boyfreind broke up with you in a EMAIL! Yep, Leo, (thats his nick name) broke up with me in a email. I got up this morning and I was a message from him and then when I went to respond, he deleted it! When I got to school I went up to him and asked him why he didnt just break up with my to my face or at least the phone? His response? That he was too busy. Wow, thats L-O-W! I asked why and he said beacause he wanted to. I asked him if hes a LITTLE sorry and he said no. When i left, my friends told me that he said to his freinds that he broke up with me because he was bored. And he took up a month of my time.... I feel really stupid right now, BUT I cant blame myself. I didnt know that this was going to happen. And then he had the nerve to call me and say that he was sorry and blah blah blah and if i would give him a second chance. I laughed and said that I will when my mom is younger than me. Do you think that what I did was right because, of course, I'm starting to feel guilty.