It appears she was talking to Weisberg from Aug to Oct 2016 as the confidentiality agreement and fee were being negotiated. Those discussions ended in October which would coincide with other reports that she was paid in Oct 2016 at the same time the agreement was signed. So it seems she was spilling the beans because she hadn't been paid, but then got paid and stopped talking.
Either way, my goodness does she look a lot like Ivanka.