Divorced and moving out.....still hopeful

[NewB3]

She did mention the other night that he has been giving her a hard time. I'm talking about S4. So this morning she calls while I'm driving into work and says "are you driving to work? Well I'm having a really tough time with him this morning and as I've told you I have had a hard week with him." We then have a little conversation. I empathize with her and tell her I understand that he is difficult sometimes and I'm sorry she's having a tough time. I talked on speakerphone to Asfoor worked out a deal so that he would cooperate. She then takes the phone on speaker phone and tells him to tell me goodbye and then she says thank you and calls my name. She then said "I hope you have a good day today thanks for your help." I say you're welcome have a good day, it was nice to talk to you.
She calls back within five minutes and I can barely make out what she says because she is now starting to cry. She said "I can't do this. He's not cooperating. I'm going to be so late for work. I don't know what to do." The original deal was she was going to call me when she dropped him off at daycare and let me know how it went so he would either get his surprise when I picked him up or not. So the last thing she said was "I will call you later and let you know how drop off went thank you."
I know that he is been telling her that he misses me and from what he says mommy says the same thing. I know from talking to my counselor that him asking her why doesn't daddy live here and questions about wanting me to live with them and missing me is probably my best chance at this point. I say my best chance, I mean best chance for really getting to her quickly.