@Borna: Hm, I will try to clarify further. It all comes down to the fact that Aarti is afraid of being completely alone. Right now she is experiencing a lot of the same feelings of rejection that she did when Prashant left her. I don't think it really makes a difference to her that she happens to be under the same roof as Yash right now. He says he can never love her, that he is Arpita's forever and she believes him, which is why she has promised herself to just be the children's mother. Prashant also told her that he could never be hers because he loved someone else and she continued to love him in spite of that; that is to say, from her perspective, the whole situation is repeating itself quite literally.
When Prashant left her, she coped by making her entire world focus exclusively around Ansh, an attitude that was ultimately the reason for this PV to happen in the first place. We noted when she first came to SH that she was as much dependent on Ansh as he was on her, because she too was lonely and intimidated and since she had married only for Ansh, she expected her attitude towards him not to change at all. She treated him as a complete equal, which made him feel able to do anything he wanted. Unfortunately, this attitude of hers is partly what caused her and Ansh to start off on the wrong foot with the Scindia family. Ansh was acting the whimsical, non-structured way he always did, the way Aarti always encouraged because I think she liked the feeling of being totally absorbed in him all the time, and the family misinterpreted that as disobedience and him being spoiled. She glossed over all the unpleasant experiences Ansh had with her words, preferring to create perfect images in his head over letting him face reality. So that is what I meant when she said that she was trying so hard to protect Ansh from rejection that she prevented the chances of acceptance as well, which is what I see her doing with this baby,
As long as she doesn't tell Yash, she can live in the imaginary world in her head, dominated by the possibility that one day they will be a happy family...the same way she did with Ansh and Prashant. The moment she tells him, he will either reject the baby, which would be awful, or accept it, which would leave her completely alone, because him accepting the baby would not mean him accepting her. So what I am trying to say is that she has no problem sharing the baby with Yash, as long as it means to him what it does to her.
I don't know if I am just repeating myself...but maybe it will be clearer if I say that this whole thought process started when I was wondering why Yash's complete acceptance and embrace of Ansh, and the fact that "uss raat" didn't affect his equation with Ansh at all, wasn't a point of association at all for Aarti. This led me to believe that she doesn't doubt Yash is going to accept this baby deep down; it is much more complex than that. Today I was struck when described Ansh as "papa's favourite." She knows, and feels keenly, that Ansh is no longer hers alone. If Yash rejects her, Ansh is no longer a source of consolation for that, if you know what I mean? The only reason Aarti got over Prashant in the end was because he rejected Ansh, which made him a bad person overall. His rejection of her could be ascribed to his moral depravity. But Yash didn't reject Ansh at all, only her. So in her mind him accepting the baby would cement the feeling of rejection. It would make Yash a good person...who has just very specifically rejected her. As long as she doesn't dissociate that night from the baby, she can tell herself that it was a moment when Yash accepted her completely, and live off of that sliver of contentment.
The moment she tells Yash about the baby and he accepts the baby but not her (as I am pretty sure she suspects he will), the rejection of her specifically is highlighted and underlined. That is why I think she is trying to keep the baby to herself as long as possible. She is terribly lonely and this baby is the only thing she has that is completely hers, the only thing that reminds her of that moment of acceptance from Yash, without reminding her of his rejection. I actually think she would be able to cope if Yash rejected the baby and her; in fact, she seems to take that outcome for granted. She would rise up like a phoenix and fight the world for her baby. But if Yash accepts the baby and not her, what is there to fight, except her loneliness? She would be trapped with a man whom she could not fault (because he did everything he was supposed to, and promised to do) and yet one who made her extremely unhappy by being unable to return her love, and essentially rejecting her and her love everyday.
That is why I think Aarti wants to prolong the moment when it is just her and the baby, when she can interpret random, abstract statements by Yash and feel happy with her hopes for the future. I don't think she is afraid of his violence anymore because she told him she loved him while trapped in a locked bathroom. If that isn't fearless, I don't know what is! Once she tells him, I think she is scared to face the finality of his decision.
And I guess that ended up being my take on the episode, though I think I will write another post about the family game scene over the weekend.