Did I read the signs wrong?

My best friend is a guy. We see each other weekly and text almost everyday. He says he hasn't had a connection like this ever before and he wants to work for our friendship. He gave me his spare key to his house and we usually hang just the two of us.

I told him I have a crush on him but he said he doesn't feel the same way. After that he said that "However I don't see why that would not be possible"

What is he thinking?

Did I read the signs wrong?
Post Opinion