Related Clues:

• To have lost his head would have made our Edward not so sweet
• So rude as to have made one bitter
• Grew disenchanted
• Like chunky milk
• (Has) become rotten
• Became unpleasant
• Turned bad, as milk
• Became spoiled, as milk
• Missing graduate from department went to hell in a handcart perhaps
• (Having) spoiled
• Became rancid
• Grew disillusioned
• Been in the fridge for too long
• Started disliking, with "on"
• Went off south with Guardian compilers' boss?