jackburred
When someone is stuck with a nonstop flow of fake promises and they still believe them even though they know they're never going to come true.
My neighbor said she'd stop talking to me if I didn't talk to her, but I didn't talk to her and she still talked to me.
My brother said he'd stop teasing me if I stopped teasing him, but we both still tease each other.
My friend said he'd stop eating cake if I stopped eating cake, but now we both eat cake every day.