Obvious this is gonna happen
Buster and Kathy will get it on
Shirley will find out in the vic and rage at them both and Phil will cry but Shirley and phil sleep together.
Shirley is furious and Sharon smirks in the vic by saying to Kathy.... "You once called me a home wrecker, a slut I believe, for what I did to you and phil ..you hypocrite, you did the exact same thing at least I've grown up you little girl" and will walk off. Day later Grant returns and Phil ditches Shirley by saying he still loves Sharon and Sharon will fall for Grant once more