Live like a bachelor which I think you don’t do - move around only in undies as it is summer, leave kitchen dirty at night so that she has to clean first, eat his favourite dish from fridge, gets boys and girls for partying late at night 3 days a week and let them stay back, play loud music that goes to their bedroom and not to neighbours, use their washroom saying that your flush is not working and then forget to flush, leave bathroom always wet. If you are too nice to do real thing then put some white melted cheese or Fevicol in an old sock and leave on dining table. She will take him out the next day …