Insidious said:
That's not true, she knows very well that the Soul Gem contains the Magical Girls' soul, that's why she acted so quickly when Madoka tried her hand at a Renegade Interrupt.
You misinterpreted my point.
Homura doesn't
wonder, because Homura
knows the details of being a Puella Magi; additionally, she knows that Sayaka
cracks like an egg upon finding out.
And that's why Homura's being so cagey about the whole thing.
This implies, for one, that Moid's interpretation of Homura is that she's gone through quite a few loops (people's headcanon ranges from fourteen to hundreds, so meh), sufficiently so that Homura's encountered situations where Sayaka found out before.
It also implies that Homura is going to, actively or passively, try to guide Sayaka away from this realization.
It also implies that Homura isn't actively against Sayaka, which she might be, seeing as Sayaka's the annoyingly impulsive type who strikes me as possibly having ruined things before.
That's my point: Homura knows, and she is, nominally, on Sayaka's side.