She's saying she's going to cancel her cell phone and buy a new plan that she will pay for. But that kind of says to me that she would rather pay for her own plan and continue the affair than stay on ours and break contact with the OM.
Yep, and you can't control that. But at least you're not financing it, and you've learned to draw an important boundary with her.
My wife had her own cellphone set up within 2 HOURS of me shutting her off of our account. And of course I then loss the intel of seeing who she was texting and how often, but I already had all the info I needed so why keep making myself crazy? It was more important to begin to get my own self-respect back, and to draw an important boundary on using our family's finances (we have four kids) on her texting and calling and sexting her OM.