If I had to guess, Voldemort did something so Snape understands how Dumbledore manipulated him. Considering how pissed off Voldemort was that Dumbledore would do that, it seems likely that he would find a way to change that now that Dumbledore is gone.
Eh. I think Snape already understood that Dumbledore was manipulating him. From the interlude with the confessor:
“It’s strange,” Snape said quietly. “I have had two mentors, over the course of my days. Both were extraordinarily perceptive, and neither one ever told me the things I wasn’t seeing. It’s clear enough why the first said nothing, but the second...” Snape’s face tightened. “I suppose I would have to be naive, to ask why he stayed silent.”
If I had to guess, Voldemort did something so Snape understands how Dumbledore manipulated him. Considering how pissed off Voldemort was that Dumbledore would do that, it seems likely that he would find a way to change that now that Dumbledore is gone.
Eh. I think Snape already understood that Dumbledore was manipulating him. From the interlude with the confessor: