My best friend is in love with me what should I do?

So long story short I have a beat friend I grew up with that I was extremely close with and we did everything together and our mom's went to high school together so we've known eachother since we were babies, anyways he recently told me that he's in love with me and and has been since we were kids.. he's been asking me for a chance but I feel weird about it because we've been friends forever and I always seen him as a little brother.. we stopped talking the first time he told me cause he was sad that I turned him down but then came back into my life and asked me for a chance again and added me to Facebook and when I told him that I was sorry but I don't feel comfortable or see him that way he got hurt of course and deleted me from FB then a week later tried adding me again to Facebook. I'm extremely confused on what I should do. I love him to death but only as a friend and it seems like it's hurting him but I don't want to hurt him. What should I do?

My best friend is in love with me what should I do?
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