OK, I will agree that AFTER the initial emotion, there is conscious effort to feed the emotion rather than let it take a more natural course or supress it. And clear effort to make sure all around her know her feelings So, the first phase of her grief is a pure genuine emotion, but the subsequent behavior has elements of both the conscious and unconscious.

We cannot say how long she would have grieved internally if she had not fed the grief. Even for sensible people, being jilted by someone you truly love takes some time to recover from. I speak feelingly ... I am more like Elinor in personality but it took me many many months to get over being jilted by someone I loved. While I didn't externalize the grief, it was real and powerful.