(he elected to sleep with his SIL)
Who has told you that he has slept with his SIL? You will find out that he didn't.
(Guilt will not make him do that, and he wanted eat his cake and keep it too. )
Why should he feel guilty about betraying a woman he does not love?
( in such circumstances an abortion is better for the child.)
I hope Bani too comes to the same conclusion and asks Pia to abort the kid. And actually Bani too should have aborted Krishna, had she been born she too would seen in her face, the image of the man who had killed her Mom.
Rgds,
Pri