Attachment sucks sometimes isn't it ?

Why is this happening to me? I am trying to move on, but everything keeps coming back as a flashback. I have tried so hard, even begged, but maybe he is not ready to be with me anymore. Although it’s my fault, I think he might be busy studying and with his college work. I’m here at home, checking his messages and notifications where I’m blocked. I want to study, but I’m unable to. I want to socialize, but even that’s not happening. It just feels like all I can do is listen to songs and remember him ! What should I do now?