How to forget him

My age is 22 (female) and I am in love with a guy of age 26. I totally love him but when I confessed him he said he does not believe in love anymore due to his past experience with his girlfriend. He ignored me in every best possible way. I have been doing one sided communication for last 5 months by sending him texts and calling him. I hardly hear anything from him. Every time I text him that this would be my last text he responds me back texting something which gives me a ray of hope. One day I called him and said why is he doing this to me. Its so painful waiting for someone about whose feelings you are unsure about. He told me that he has not got over his last relationship which ended 4 years back. He is still waiting for that girl. I felt sorry for him and asked but why is he putting me in dilemma. If he can't love me just say upfront that he does not love me and I would move on. For that he said he can't say that and he said he wants the things to go same way as it is going. He said we can talk, we can be friends. I don't know what should I do. I love him but he never expresses his feelings for me. It really hurts waiting for the call of his whole day, whole night and still not getting any call. Then, 15 days back I observed a change in him, he started calling me and texting me. We used to chat through text messages. I thought things are changing. It happened two times that he said over the phone that sometimes he feel he is falling in love with me. I thought I should be patient and wait for him even though its 6th month running now and I have been patient enough. One night he asked what do you think real happiness is? I answered him loving a person, getting loved by the same person and living together for the rest of the life is the real happiness. That same night I again told him that I always wished he was mine. He responded by texting that "You girls always say like this but when you get the thing you would feel like getting rid of it". I said its not true all we want is time which most of the guys are not able to give. For this he responded "And this is what even I don't have". From that night I left him several messages but did not get a single reply from him. He again started ignoring me which he used to do earlier. I know he is not happy with his life and I want to give all the happiness he deserve but instead I am getting all the ignorance,pain and agony. Now I want to move on but its not happening. I am stuck in this. I am still living in this imaginary world where he is there, his ex, his college, his friends everybody is there. All the stories he told me about his past love life in his college days, I have started living in that. I visit his college website everyday. Even though I have never been to that place where he studied and fell in love, it feels I have been to that place. I know everything about it and this is all the result of excessive googling of things related to him. I even found his friends and ex on facebook. I check everything related to him on web, even though he is not on any social networking site. I am so stuck that one day I thought that if I bring his ex and him together then I will be able to get rid of him. I somehow managed to chat with her on facebook and told her everything. She was surprised that why I wanted to talk to her. I told her everything and begged her to forgive him and give him one last chance. She said that she has already moved on and expect the same from him. I told her how much he is suffering and repenting. I even tried to find out that what exactly happened and why did they broke up. The only thing she told me was that she loved him a lot in the beginning but he took her for granted and things got messed up from there. She said that she is with someone else now and can't go back to her past. I even tried to get along with my ex to forget him. I kissed my ex so that I again fell in love with him and forget about this guy but nothing happened. I cried a lot after doing that as if I did something really wrong. It made me feel even more terrible. I don't know how to forget him. Only thing I want is his happiness so I tried to get her for him but could not succeed. I love him so much but he would never understand. I want to move on now. I want to take this guy off from my mind which I am not able to do. I want to stop living in my self created imaginary world which I am failing everytime I try. He stopped texting me and I don't know what to do. I feel terrible. What should I do? Shall I still wait? It hurts me too much...We are far apart. I miss him every day. Please suggest me what to do. Shall I wait for him thinking that he would forget his last experience and would express his feelings one day or move on. I am really stuck in between my own emotions. Please help me what should I do. Do you think he loves me or he has nothing in his heart for me?

Do you really think its mere obsession? I have been struggling from months to come out of it but I am not able to...

He keeps popping back into your mind because you are clinging on to that "ray of hope" that perhaps someday, you two might end up together. In order to fully get over him, you need to get some actual closure directly from him. Go confront him up front if it's still possible for you and tell him that you no longer want anything to do with him. Stop sending him text messages -- in fact, get rid of the sim card that you're using in order to send him text messages and buy a new one if you can. Furthermore, are there any other constant reminders of him around you? For example, any particular music, tv show or object that constantly reminds you of him around you? If there are any of these around, then they are reinforcing the psychological anchors that you already have for him. You either need to get rid of these objects anchored to him, or you can reprogram your way of thinking to associate these anchors with something else entirely -- that is, you are able to identify them. Here's an article I wrote on the subject: http://www.relationshippsychology.com/breakups/get-over-a-broken-heart-psychology You might find it useful.