AnuPre's love for each other is enough to bind them together.. They never used the baby to bring them close in any of those previous separation tracks. The baby is just there as a by product of AnuPre's love for whom nobody cares.
Even when Pre fought with Moh at BB this time she never used the baby to show her right and over Anu. She clearly told Moh that she cannot separate AnuPre just because they love each other..
Neither Moloy or any Basu cared they are throwing out the baby with Pre which is Anu's flesh and blood..
Only Suman acknowledged the baby till now.
So how is the baby used to bind them? The baby is going to be used to separate them and that's why they are stringing it along the track.
That's true aurtika....but wait n watch
It will be the baby only..who will bind them later on