He tried to make a model world, but his activated beings evolved repugnant behavior of their own devising. He was so disgusted he burnt his experiment and started again.
Earth Mark II was not much better. Debauchery and depravity prevailed. So he wiped them out with a flood.
But this time he saved one couple. MAREREWANA and his wife had almost been up to scratch, so he let them survive into the next creation, finally realizing that wickedness would always surface no matter what he did.
He had lost interest by now anyway and went off to have a go at something else: deep sea fishing, sky diving or flower arranging. Who knows?