I think I know what happen......... The plan shiv was talkin about gauri n shivs marriage .. todayz episode gauri overhears the guru ji talking to someone and i think if it has to do wid da guruji it means that mayb they wanted gauri to marry shiv bcuz she was lucky for him ...sumthing like wht happened in kkusum.. this is why shashank left and why shiv prolly feels bad.