After watching tonights episode i have come to the conclusion that Vidya still has hope for her and Gaurav. Why else would she say "he loves me alot" when she knows he doesnt.
Vidya knows if Priya found out she would speak up and make Vidya understand that there was no point in keeping a marriage alive when it doesnt exist in the first place. And thats the last thing Vidya wants, to leave Gaurav. Only a few weeks ago she was begging Gaurav to make love to her and now shes saying shes very happy. Who is she fooling?