100/200 A4o on the button

[Ryno]

"why are you taking a free turn in the last scenario?'

Yeah that is not correct, it should read bet turn, check river. And also to address one of the questions from OP, I just don't see how there is a "right" line here, even if you have not played any hands with an online opponent. Unless your game is built around getting someone to lean a certain way (which it might very well be, but then the choice depends on your style).