Prachi is one character that most people like to bash up, whether they are the characters of the show or members here at IF (including me). While at times she did get on people's nerves, like the time she let Milsi believe she is Ritwik's mother and did not open her mouth even afer her sis-in-law asked her to, by and large she has stuck to her basic character and that is to sacrifice her happiness for others but at the same time stand up for what is right. Two of the things she is often accused of is 1.letting Ayesha do as she pleases, quietly taking her illtreatment; 2. not being clear about her stand vis-a-vis Neev, whether it is to Milsi or to Neev.
-Prachi did show Ayesha her place when she tried to throw her out of SM. She made it clear she will not let her decide her place in Milsi's life. She made it clear to her that she loves Milsi dearly and will do anything for his well being.
-Yesterday she made it amply clear to Neev that she will tolerate anything for Milsi not because she is forced to or that she is helpless but because she loves him.
She made is amply clear to both Milsi's ex as well as her own ex that she loves Milsi. She showed that her silently taking down the photos from Michi bedroom had nothing to do with Ayesha's commands but rather her concern for Milsi's health. If she has to ensure his health and safety she will do so by remaining close to him even if he shows his hate. To Neev she showed pretty clearly through her actions that although she clung to his hands the previous day for support out of sheer vulnerability at the thought of losing Milsi yet again, he cannot expect her to fight her own husband (especially when he is in the present state). She will always love her husband no matter what he puts her through.
I think that should put paid to all those skeptics who felt that Prachi will sacrifice Milsi for Ayesha or that she will get back with Neev at the first sign of trouble in Michi paradise.