i think gauri is going to go away from shiv there are two things that i obsereved first when ever she says anything or does anything its for shivs happiness. she is willing to give her life for the sake of his happiness and second thing is that whenever in the jail scene she was trying to get close to shiv he was a bit hesitant and was making sure she does not get a wrong idea that he loves her.( even he was reciprocating to what was happening but he had to control himself many times) the moment she tried to get more and more close to him shiv truned and she left as if she has been defeated in love and that particular moment reflected that for his happiness she may go away from him and nerver ask him why did he do this to her.
i think the reason she returned to him after knowing the truth is she wanted to be with him and also try and win his love ( i think this is the main motive gauri has) and but after realising that whatever she is trying to do ( that is trying to win his love ) is not helping her and instead she is giving pain and hurting shiv she is going out of his life forever. ( hope i made my point and not confused all of u we know all these things from the begining but yesterday it was more evident and clear that this is bound to happen and then they will show that ram the chawl guy hope he comes soon 😆)