I'm not even sure anymore if writers are going to give any mention or importance to the bet in the future now
Yeah. I also feel the same. Eventhough the bet is revealed I think Prachi will support Ranbir for whatever he has done for her.
But what if Rhea makes Prachi believe that in diwali it was Ranbir who planned everything to gain Prachi's trust? I think it can happen. Rhea's original plan after all was to make prachi look bad infront of all and bring Ranbir to support her so that she starts falling for her, although Ranbir was unaware. So if somehow Prachi gets to know that he agreed to making Prachi fall and did such sinister things it will completely change their equation.
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