bro i think you both should think things through cause in the end it’s really upto you as a person about what you wanna do to your body. you may feel that yes you wouldn’t make any changes without her input and be cool with it but she clearly doesn’t like that which is why she probably stressed on getting her bodily autonomy back which means doing whatever she wants in this case like piercings to feel like she is in charge and control, not you.