Sofia almost let her thoughts show on her face so she put on a fake display hiding away what she thought of him.
Hiding her true emotions came so naturally to her after the various things she had been taught from a young age.
The only times when she truly let her true feelings show and let out her true personality was when she was back in school where she did not need to worry too much about bringing shame to her family or affecting her family's image.
Her father had donated quite a lot of money to the school so if anything did ever go wrong, her father would be able to cover for her.
Perhaps that was why she spiraled down further into doing more bad things without restraint which resulted in her moving onto bullying Ash or Azra Dash as she was previously known.
The other times when she was able to do so was when she was at home where there was nobody to be able to carefully watch over and judge her every action.