B4 starting, let me clear, kunal is equally at fault here. More so infact.. but there are speculations on why Nandini is hated more.. let's try to figure out.
1- cry shiver vibration ka overdose 2- emotionally manipulative 3- guilt level 0 4- no intention to be financially independent 5- betrayed a friend who literally saved her 6- Mauli stopped existing for her 7- Keeps calling Kunal without second thoughts 8- bholi bhali abla nari image is contradicting her character 9- hum tumhe hurt nahi karna chahte the? So sleeping with Mauli's husband is gonna give Mauli happiness? 10- humne sirf pyar kiya- ok boss ho gaya pyar but u cud hv controlled ur hormones too. 11- Lies without remorse 12- all the freaking time sympathy seeking 13-