I dont think it was a good idea to have Gauri be the girl he was married to as a child, this kind of confuses their stance on how they are trying to show bal vivah being wrong and unjust, as mentioned they should have made her to be just any other girl.
This means untimatly for them still to carry on stating that bal vivah is wrong Jagat and Gauri have to seperate, and he cant go back to gauri, otherwise it just showing yes there are problems but it all works out in the end
In that case Jagya cannot go back to Anandi either...since theirs is the original child marriage...I am not sure whether the CV's have the guts to do that...hope I am wrong.