Hi,
My Story-
We both are friends for past 2 years. I started liking her at first sight. I told her earlier[1.5 yr back] that I love her so much. At that time she had a boy friend so she said me no she can't. So we continue over friendship.
6 month back she broke up with her boy friend because he is such a bastard. So from straight six month we became bestest friend and we shared a lot with each other, we started talking daily. We always eager to know what we both are doing. Sometimes I gave her some sort of signs that I love her, but she ignores it. These all things happened in chat and phone because I have a job which is far away from her home town.
After completion of 2 year I told her my feelings via writing a love letter through e-mail. But she refused and she said that I hurt her, but I can't do that even in my dream.
She is continuously saying that I am trying on her forcefully to love me. But I haven't says that. I just say her that please give me the +ve answer in my love letter. I love her too much. I had never think about any girl for the past 2 year. Even she had a boy friend at that time also I stick with her.
I know she want me to come back in her life as a friend again but her ego came between us and I can't be friend of her.
Please help me what should I do I love her so much that I can't live without her.

I would be thankful to all of you... Pleaseeeee

You aren't trying to make her love you?
"I just say her that please give me the +ve answer in my love letter. "

That's you trying to get her to love you, to say she loves you. She doesn't. You have to give up. Unrequited love goes nowhere. You can't live without her? Well, I know that feeling and so do most people, but unfortunately or fortunately, life just keeps going on and you suffer and feel like dying but are too much in love to doing anything but suffer some more, and eventually the pain goes away.

I would just leave her alone, there are to many other girls in this world that would do some much more for you.

She's made it clear that she doesn't want a romantic relationship with you, but it seems like you moved right past the "friends" thing and tried to move into the romantic territory she wanted no part of.

Since you've already crossed the line, I would suggest that you simply go your own way and forget about her.

avtarvarun : I did tried to make her love me. I did everything whatever she said. I make her smile whenever she got upset. I am always there when she wants me. She really likes to talking with me. I didn't know that what else to do to make her love me.
She does love you as a friend, but since you could not take the hint now she is mad at you and rightfully so because despite what she tells you all you care about is what you want from her and somehow in your twisted love, you have heard NOTHING.

Leave her alone, plain and simple and let go of your obsession with having romance with her.

Thank you all for the comments. I really appreciate you all to help me. You all are right I have to leave those obsession and I have to leave her and move on... Thank you all I will definitely try to move on.