According to the precap shivani is giving raghu her daaju's / rana's place... she already ackniwledged him as a gem of a human, the love of her life ( although she doesn't realise it yet) n her husband ( again she doesn't realise it yet n we can only look at the emotional aspect not the physical one...) ... n now she has given him the place of her daaju whomse lived most in the world... so now daaju tskes a back seat... now raghu occupies the most loved n trusted person' s seat...
Plus ... daaju's place means rana's place... malik's place... by letting him sleep on rana's bed she has acknowledgedthat he is the maluk if the house... n i think tmw we will also get a scene where raghu will sit in malik's/ rana's chair...