My childhood male friend is in love with me. What should I do?

So long story short I have a best male friend since before I could even walk and a few years back he told me he was in love with me but I didn't feel the same way so he stopped talking to me, just recently we started talking again and he kept trying to date me again after I've told him many times I don't want a relationship and I don't feel that way about him and that I still need to focus on me and grieve to the loss of my father who passed a year ago, he still wouldn't understand and was basically begging me to give him chance even if the feelings weren't mutual. He recently stopped talking and deleted me from Facebook. Should I just forget about him and never bother with him again? It's sad because we were so close as kids, pretty much like a brother and so close with me and my family it breaks my heart that he's being like this and not respecting my feelings.
My childhood male friend is in love with me. What should I do?
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