She's been her own worst enemy - she literally can't stop sabotaging herself.
Holding,
You're implying that it's in her best interest to stay in the marriage, thus she's "her own worst enemy." There's no doubt that dissolution of your marriage is a terrible thing, but you should understand that it's unlikely that she feels she's sabotaging anything.
I'm not trying to rub salt in the wounds, but I do want to point-out that I'm certain her feelings about the situation are very different. Not because I agree with her actions, but because you need to be aware that her perspective, thoughts and emotions are different than your own and it will help you to understand that as you move forward.
