There was this girl who gave me clear ioi (complementing my teeth, touching my shoulders etc), but I was unaware of it until after we stopped being in the same social group. She told me that she used to be interested in me.

Now, lesson is learned. But I can clearly remember that my older friend (who is experienced in these matters, and is in a ltr) cockblocked us and didn't tell me that she was interested.

Why? Why do some men cockblock?