The only thing you know of her behavior is that she confessed to killing her husband. That would mean you have observed many women say they have killed their husbands. Is that what you are saying? Otherwise, you are making assumptions that are baseless.
Nooooo.
I'm saying that when push came to shove she put a bullet in her husband's back rather than follow the teachings of Scripture.
The 'confession' part is consistent with that whole 'stand up in front of everyone and repent and everything is forgiven' thing that I talked about earlier.