Rakhi marriage cannot be fake for sure because, now would have been the time for RS to flash that trump card.
But look at the way Pakhi is dressed: mangal sutra, wedding bangles and maang mein sindoor..that paves the way for pativrata patni: after all mahan Kamla Devi has said she should nibhao da shaadi..
yes, we saw the pre cap where RS expects Kalpana to pick up the phone..and things to go back to hunky dory..that won't happen anytime..in that chakkar, pakhi will go all suffering, sweet and nice..and gauri will soften up and RS too..we will get the odd flashback or two, a few chance meetings etc but no Ragna future.