The biggest mistake writer is making with Nandini is trying to whitewash her (Kunal praising Nandini in front of Mauli, Nandini fulfilling Mauli's promise etc.) after she slept with Mauli's husband. Maya was a grey character initially and with Maya there was Sanjh who was a completely white character, but people did love Maya more because she was never whitewashed. Imagine how would people who love Nandini feel if Rajdeep was whitewashed to show that even though he is hurting his wife but he loves her immensely. Even if tomorrow in kidnap scene they show Rajdeep confessing his love for Nandini, going through a complete overhauling then beating Nandini again, then God putting sindoor in Nandini's head showing Rajdeep is her destiny (Yikes), that seems so wrong and so twisted and did I say so wrong? That's what I feel when I watch these whitewashing efforts for Nandini, Nandini hurting Mauli then organizing her birthday then Kunal praising Nandini then they showing how Nandini's dua is saving Mauli and most of the energy or writing by CVs goes in this direction only, they just can't show Nandini as who she is, Maya was a completely black criminal but people connected with her and when she died in the end, many including me cried for her.
Coming to the point, audience connected with Mauli, we love her and I won't say her character isn't writer nicely but do remember during KuNan love phase, her only job was mentioning Nandini in front of Kunal and Kunal in front of Nandini or sending them with each other. The only time I think her character was written nicely is in the beginning before Nandini's entry in her life and during the revelation scene.
Coming to the EMA, now just think about it I never said that kunal is being whitewashed, Kunal has been thrown under the bus to take the full responsibility of EMA, Kunal fell for Nandini watching her dance in rain, I bet many of us thought Nandini would be the first one to fall in love with him but no it was Kunal and Nandini couldn't fall in love with Kunal like Kunal did, because that would put a little blame on her, so Nandini falling in love with Kunal was blamed on a Baba, then it was always Kunal who took steps in their relationship and as I said for Nandini's each step towards Kunal, there was a Rajdeep torture scene. In upcoming scenes Kunal has been butchered completely and the blame of EMA has been lifted completely from Nandini's shoulder to point out that people or Mauli are blaming Nandini because she is a woman, not because she is wrong, just because she is a woman.
Don't confuse this with audience reaction, I am talking about what is happening in the show and the more they show that Nandini is not at fault, the more people blame Nandini only.