Out for a walk (Oliver)
The most recent one of course, being Jimmy. And that was the one she blamed herself for the most. While Chloe knew she had no more control over Davis' alien side than she did over his human side, she still felt like maybe, if she had stopped him when he asked her to, if she had found another way to truly get rid of the monster when Davis was willing to co-operate, Jimmy and all of the others who had been murdered when he freed himself, would have been saved.
She knew thinking about this was useless, especially now that she was stuck in an entirely different reality, but as she took a walk around the town, she allowed herself to play the what ifs that she always did her best to avoid. Mostly because there was another apocalypse coming, in this place and their own, and she felt like it was incredibly important to learn from her mistakes. This one in particular.
And the lesson was simple, it was one she had been just speaking with Clark about: Not everyone can be saved.