Good post!
I think its both love and debt. Unconditional love for mother combined with an overpowering and overwhelmingly burden of debt. Dev's universe revolves around Ishwari and so does Ishwari's.
Their scene today was so heart-wrencing, Ishwari lied straight to Dev's face and so effortlessly shifted the blame and guilt she was to bear the burden of onto Dev. I always knew the kind of character Ishwari was going to be, understood where she's coming from and got her to an extent. But she greatly disappointed me today, not that this was the first time she did so, however, this was the last nail in the coffin.
I agree, I think she's past the point of no return and I wonder how the writers will be able to redeem her character. I hope one day she does repent and redeem herself though. She's one hell of an expert at emotional manipulation and its tragic how she doesn't realize that's she's ruining Dev.
Keeping the fact aside that Dev needs to grow a spine, my heart went out to him in the last 10 seconds walk. Deep down he knew why Ishwari did what she did, that's she did not send Sona the alliance out of the goodness of her but for own selfish motives. Dev still lets go of the matter taking the guilt on himself, broken, hurt and pained and walks away while the tears in his eyes speak volumes about his miserable condition.
Erica, Shaheer and Supriya were brilliant in their respective scenes. Brilliant job by them all!
PS Nandini, is that you? I'm sorry TM if I have mistaken you for someone else but your DP and writing style reminds me of a friend.