Dude Abides
Banned
Did you just choose not to look at the gif? she turns around even before his arm has a chance to move, she only gets pushed backwards because his arm is still making contact with her hip when turns towards her when she gets in his face.
And what theory? It's clear as fucking day she's pushing hard against him, look at how far out her hip is going to the left dude, she even repositions her elbows to get more leverage for pushing.
I'm just going to assume you are being purposefully dense if you can't see that.
"Purposefully dense" is a bit rich coming from someone who has difficulty distinguishing backwards from forwards.
I ready said what I think of your theory that pushing against someone with your (stationary) hips makes it ok for them to shove you with their (non-stationary) arm.