Childhood friend and me....something weird is going on

[Ashy]

Personally you sound like you are developing a deep emotional bond with your childhood friend, but that is nothing to be afraid of.
What you are experiencing in my opinion is that of a protective bond, a sort of multi-level friendship that has extended to that of comfort on many different forms that you have described.
I think the friendship that you have with him is amazing !
I assume it makes you feel safe and secure, as well as kept in line and in sight.
You shouldn't fear this bond that you have, I'm a gay guy and I've had a very similar bond with a girl. Its just a higher level of experience and awareness. I never told the girl that I felt this bond, and its been five years and I still haven't told her and we are completely fine.
I don't believe that you have to tell your friend, obviously the friendship between you too is perfect the way it is, its just that you two are more comfortable with mutual affection.
Don't stress, just enjoy the friendship that you have, a million people would kill for that kind of mutual affection (: