Because either we haven't met the right person or we have let that "right person" slip away.
So then the question arises of why would we allow a " right person" to slip away?
Perhaps insecurity a/or fear or perhaps we were to dismissive? Maybe we are lacking in skills of perception and the connection didn't register.
As for guys, at least myself, it seems as if we must formulate and articulate the proposition of declaring interest in a very precise and benign way in order to even hope for a chance at developing a friendship.
So then the man is attempting to pursuit yet it falls on deaf ears or perhaps the woman has a very specific target which negates anything less...
Boy for being a newby I sure bit off a mouthful!
Love to hear feedback but please be merciful..