Confusion on a Sunday afternoon

Why many of us are incapable of simply loving each other and getting fulfilled from it?
Have we perfected all other aspects of our lives that we want to optimize the love factor? When a simple tooth-ache can creeple us so easily, how do we easily risk our happiness with emotional stabilities? What's this constant thirst? Does it ever stop?
Maybe only with a tragedy?!
I keep thinking about Babel.
Why can't we simply hear each other?