I think, when Gauri will turn negative, she will make Jagya and his family's life a hell... thats when Jagya will repent... at the same time Anandi would be pursuing higher studies (as per the source info) So JAgya will start finding Anandi more attractive and lovable and that's when he will want Anandi back in his life...
I know this is too much of presumption, but knowing Jagya - he is man of convenience... so for him any girl who is easy, nice and comfy for him is the one he will go for... he might never realise what LOVE is...
The question is will Anandi then accept him???