Fuck indeed...
You're viewing a single thread.
Obi-Wan and Padme are by far the two likely ones, but there is a point where Anakin realizes he's going down the wrong path while still not on the dark side, I believe when he kills Dooku. That's one place as well.
At that point, it seems like he's still falling, doing the wrong thing for what he thinks are the right reasons.
I don't have a time in mind, but I suspect that him having the realization would be after that.