Hi Idontknow,
There are more people who are desiring your love. According to your story you have done you could, I believe it is not only your responsibility to keep your friendship alive. You may have a great feeling for this relationship but still It takes two to tango.
He might have his reason to not reply you but his decency is not your obligation.

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when he started I was facing the hell and but when he stoped the hell was facing me. I guess 13 is just an unlucky number and it was my age.