What's saddest of all in this, is the need and desire for a mother, a mum, never seems to leave us.
You must know how rare and wierd her actions are, being a mum. Do you believe this is about you, or her? She left you behind, it was nothing to do with you, phipps, the baby girl, it was what you represented to her, a need to mature and care for others and not fixate on one's self.
Her lifestyle and decisions maybe explain all you need to know. She is missing the neccessary selfless part of her nature, to care for her child. It's that simple, and sad. She probably can't explain her reasons to you because she doesn't know. You can't miss that part of your nature if you never had it. She is an abberation, because nature provides mothers with the needed hormonal imperative to protect,, and she didn't have it, or not enough of it.
You must feel like you are grieving the mother you never had. At least now you can give your children everything, all the love, you never had. The best revenge really is living well.