Amid viewers fuming over Cain Dingle and Ruby Miligan's affair on Emmerdale , there could be explosive scenes ahead. They were almost rumbled hours after their secret fling, as Thursday's hour-long episode of the ITV soap saw Cain's brother and Ruby's husband Caleb Miligan make a discovery. Ruby and Cain were seen fuming at each other, vowing never to expose what they did. Cain cheated on his wife Moira Dingle when she was in the middle of brain surgery amid her brain tumour diagnosis. Ruby had