I have said too much unto a heart of stone / And laid mine honor too unchary on’t (3.4.)
Olivia laments that Cesario seems unmoved by Olivia’s confession of love, and admits that she is embarrassed to speak so openly about her feelings.
For a high-ranking woman like Olivia to openly declare her love would have been considered improper, but Olivia cannot hold back her feelings.
Olivia resembles Orsino in that she is impulsive and melodramatic about her feelings.
However, she is also aware that by admitting to feeling love and desire, she is risking her honor and reputation.