While I agree that it's frustrating to see an Anshuman back to his usual petty tricks to get Pakhi to leave, I won't say that there hasn't been any growth in his character.
They show the changes in him in very subtle ways...things like him being unable to help complimenting Pakhi accidentally even as he claims to hate her when he's talking to others or himself...him being unable to see Pakhi's pain while in jail and unable to help reaching out to comfort her...the fact that he came to put sindoor on her that morning in jail was not to fulfill his promise as much as it was to comfort her...he was all but about to hug her when she came out of jail if that tuition teacher hadn't interrupted...he didn't need to get her chai when they were heading back, but he did...and kept asking her if she's ok...so the changes are coming...albeit very subtly.
At the same time his primary focus remains to get Pakhi to leave the house...he obviously won't suddenly stop thinking about that even if he's softening otherwise...the softening is all SUBCONSCIOUS...on a conscious level, he's still so blindly focused on getting her to leave that somewhere it's become single-minded...he doesn't analyze it anymore...
He doesn't know how to communicate with his own son...today Pakhi gave him a genuine moment with his son...and he appreciated that...he was touched by it in that moment...but when the spell breaks, he again returns to his main mission...which is to foil Pakhi's attempts to befriend Ayaan. He obviously won't just sit on the side and watch it all unfold...that would be out of character as well cuz he hasn't yet realized his feelings for Pakhi.
They are building up the drama for the 15 day thing...Pakhi will win the challenge only on that last day and that is when we will possibly see a major change in heart for Anshuman too...right now it's all build up.
