AFTER I TOOK OFF MY TIARA CHAPTER 109
Istel pondered what Jinjin said and smiled afterwards. What she said was true. Felix is her husband; therefore, she must have more trust in him than anyone else. She knew that this is something Felix must be struggling to say or to do when he's with her.
But strangely, he became like that after they did 'it'. Does he not like it or was he disappointed? Whatever the case is, she thinks that it's her to be blamed. Perhaps she was too overthinking that even Felix can't move around with her freely.
But she never restricts him to do something, and he is fairly free to do anything, but he has to not cross the line, since all freedom has restrictions too.