Sorry to hear this. But if she wants to be the new bank of your XH then let her. It's one thing to support a spouse in these circumstances but quite another to support a boyfriend (or whatever it is you call this). Think about the mentality of her ... shes buying love. Sad all around.
Me 35 H 34 DS- newborn 8/13 T 8.5 M 7 H's EA - 10/11 INILWY 5/13 DBing 6/13 Don't know WTF to do 1/14