You guys are missing the point.
The writers aren't setting up a Walt-Flo dynamic, they're using it as a plot device to further advance & strengthen Walt & Paige.
This will finally bring some excitement back in their relationship among the audience.
So, @Sarah 103 she might just end up with Sly, though I find the odds of that next to impossible.
IMO, Walt-Flo is better than Waige since Paige's character has become rather bland recently.
And @theatremouse, the escape that Toby used wasn't programmed into the AI. It couldn't detect that Toby has left since it'd be illogical as there are no escapes that are unmonitored, or so the AI believes. At this point if Toby isn't being detected, an AI would believe the sensors to be faulty as a point of failure but it has to assume that imminent danger is still present.
