He doesn't turn his back on us, he turns his back on sin .... And we have pushed him and tried to run our lives so much that he is patiently waiting for us to turn back to him, he allows these things to happen ( like he has throughout the bible ) so that man ( his creation ) to stop relying on himself to save himself because he can't! We turn to sin naturally .... We are greedy and prideful as human beings as man so we try and do things our way which is the wrong way. If you read in the bible God is hurt by all this, he is sad .... But he is a just God .... Everything happens for a reason ..... He can use the death of a person to save 10-15 people. His plan of salvation is there if we just chose to accept it. He doesn't want to force us to love and follow him, it's our free will choice and he allows us to make that decision.