Do atheists believe in the existence of friendship?

[BrianSoddingBoru4]

(Bold mine)

Again, I reject the premise. I can’t imagine a set of circumstances that would make me try to be your friend.

Boru

Sorry, soon after I wrote you, I somehow predicted your reaction.
I admit that I had to say it differently.

Now, let us forget about me. And imagine any human on earth instead of me. What could be that thing?

The question still doesn’t apply, as I’ve never tried to make friends with anyone. Friendship is more organic than that.

Nor do I feel the need to demonstrate my friendship to other people. That's nonsensical.

Boru