Reboot

Reboot follows the female-led dystopian fiction formula to a T. A virus has wiped out a good junk of humanity. Some young people "reboot" after dying. These youth are employed as "reboots" to be the security guards of humanity. The length of time that a reboot is "dead" before rebooting impacts how they are as a reboot. Higher numbers are more "in control" than lower numbers. Humans control the reboots and track their moves. 

The central character is a high number female reboot. She prides herself on her skill and her ability to follow orders. She meets a low number male reboot. She is asked to train him. They fall in love (of course.) They escape. She tries to go back to find the medicine that can help save him. (They have been running some experiments on reboots that make them extra wild.) After some close calls, they escape to their Utopia. It provides a nice conclusion while setting things up for the next book in the series.

Change a few details and this could be one of the many other dystopian works.