What's Interesting about that is that this is pretty much the initial shock and fear that an LBS has when he/she first discovers an A and gets the bomb.
1. Have lots of "love-making", during which WAS and OP laugh about LBS;
2. Introduce OP to the children, marry him/her, and and separate the children from LBS;
3. Toss away the LBS;
4. Replace the LBS with OP as a parent to the children.
5. Force a D settlement that is so inequitable that LBS is in effect "Homeless".
Sounds like she is going through the process. It's just that (as seems to be the case with many things in your sitch) its a bit more uh...dramatic... than in the rest of our's.
Me 42, W 39, S8, S6, S2 M 11y, A & ILYBNILWY 11/08 Walking away from a bad situation.