Somehow, I feel that his first wife Snigdha ji would be brought inside the bb house during the family week task, where it would generate more trps for the show..even this wifey would be searched for and the interview made viral by the bb team itself to set the mood for the so called 'future exposure'....Ritesh must also have agreed for the plot if paid huge compensation/remuneration.
Then, if first wife is not yet divorced, second marriage remains invalid and then....it seems she is already ready to 'forgive for the sake of her son and move on (basis that viral video)..So Ritesh would seek apologies, move back to his earlier family, Rakhi would cut a sorry pitiable figure, get huge amount, get rid of this fake/illegal marriage baggage, and still stay relevant due to sympathy wave.