Ahem ahem...i think they really look good together and hey i don't mind seeing this dada and dadi getting married especially now that parvati looks as young as her grand kids. as for parvati staying in the mehra family, there's really nothing wrong with that. atleast they are logical, understanding and very caring towards parvati (before she accused suyash), unlike the agarwals who wouldn't leave a single oppurtunity to kick parvati out of the house. also, the story can still revolve around the agarwals even if parvati becomes Mrs Parvati Suyash Mehra...
i can't even imagine suyash dying in the show. that would totally break my heart, it's already painful to see him suffer from neglected love