Hurts so bad

After dating this guy for a year and a half he just leaves without a word or explanation why. After looking at his Facebook and tumblr he apparently had been cheating on me with another girl and decided that leaving me without a goodbye was best so that the other girl wouldn't find out about me. I've never been this hurt in my life. He broke the one promise of always being there and that no one could compare to me and he only would ever love me. But looks like that was all a lie. I still love him so much and all I've done is cry and I've continually asked him to just give me a reason why he left but he won't answer. I can't get anything accomplished because all I think about is him and it just makes me bawl my eyes out. I don't know how to stop the pain and tears and I have no one to talk to since he was my best friend that I could go to anything about. What should I do?

I think he left because did not really love you and he is therefore not worthy of your love and affection. I know it hurts but the pain will go away over time. The best thing you can do to stop the pain and tears is accept the situation and try keeping yourself busy with other activities, hang out with your friends. The right person will come at the right time.