Sam ,
She went coz , Adarsh did not stop her , nor did anyone ask for her views ...if anyone or if Adarsh had refused to allow her or even hinted that he was not happy about her leaving their house ,she would have refused to go and none not even SS could have forced her ...
but from the POV of the story ,it is essential that she remain in SS house and collect all the data regarding their plots and activites ..