Maybe she called him "Sky" once too often..?

From The Metro:

A British tourist has been arrested on suspicion of beating his girlfriend to death on holiday island Crete.

Luke Walker, 22, faces charges of 'causing fatal bodily injury' after his girlfriend, 20-year-old Chelsea Hyndman, died in hospital on Monday. She had suffered ruptured internal organs 'evidently caused by physical violence', said a coroner...