She could be waiting around for someone else or it could be that she can't go through withdrawal because of seeing OM all the time.

I'm telling ya- she's not prepared for seeing her kids with another woman.

Heck, I'm remarried- happily- and stepmom and I have known each other for years but it kinda still turns my stomach when we're both around (we get along well) and my daughter goes to her for something. But I suck it up. My son is more standoffish with her so that one doesn't hurt so bad- but the daughter? It kills me still.