Just a Thanks

Was P's birthday not long ago. Thought carefully, I did sent him a very simply email saying Happy Birthday. Nothing more I really can say, I said all the things I want years ago. And he might do not want to hear from me any more at all. And may be saying Happy Birthday is too much to him.
Now finally got a reply from him after this whole year. Just a Thanks. Only one word. Thanks.
I was surprised he actually replied. My tears are everywhere. All the hurts come to me again. Why for a suddent, he hates me. Does not want to talk to me. Why he just throw me into the rubbish bin without even looking at me.
Why god made me like him and....so hurt.