Her life from the day she is in womb is one big rollercoaster ride but this girl was strong and fought back the situation.
She stood by Mukund against RK
She went through all the humiliation when RK married her and treated her like his servant
She took humiliation many a times from Deepali
She even withstand the fact of her father Shamsher malik tried to kill her husband RK
She fought with her birth father Ballu
She moved on even through tragic incidence of RK betraying her and breaking her heart
She saved Aryan/Sultan knowing its dangerous.
BUT WHEN IT COMES TO RK AND HIS PASSIONATE TOUCH/LOOKS THIS WOMEN FORGETS THE PAIN HE GAVE HER, SHE FORGETS THAT THIS IS THE MAN WHO HUMILIATED HER IN PUBLIC, HE INSULTED HER PARENTS, HE CRASHED HER SISTERS DREAM, HE HAS DONE NO GOOD TO HER TILL DATE. SHE JUST MELTS WITH HIS TOUCH. Why Madhu Why Madhu ? RK knows it for sure about her vulnerability.
This is making her all the more weak against him. She should not surrender to him. This man has troubled her, torned her still she likes to be with him. Ye kaisa junoon Ye kaisa Ishq Madhubala?