Miles' near-death basement experience brought him clarity and focus to Revolution Season 2 Episode 20.
Much to the disappointment of Monroe, that is.
The installment mainly focused on Miles. His clever ruse with Rachel completely hooked Monroe. As much as Miles and Monroe work well together, Miles and Rachel working together are better - and splitting from Monroe gives Miles some time explore how he wants to shape his life without the Monroe noose hanging around his neck.
Miles took a stand here for himself and his future.
Miles decision was a welcome change from where he's found himself for most of the series. He's plenty capable of thinking on his own, but he always ends up leading the charge and action for someone else.