<human>: Give me a shortened version of the text

Me and my bf have known each other for a few months but have only been dating for a few weeks. It was great in the beginning but I'm realizing I like him more as a best friend, and there isn't much romantic chemistry. Problem is, he is already crazy about me. I know it will break his heart if I break it off, but I know I need to do it because it will be better for the both of us in the long run. He's gotten turned down a lot for only being liked as a friend, so I feel really bad about this. 

I just don't know how or what to say to make it as least painful as possible. Can anyone give me some examples of what to say? Or any relevant stories that could help me out?
<bot>: Dating bf for a few weeks but realize I only like him as a good friend. How do I break up without breaking his heart?