Shadow the Hedgehog has always been fairly distanced with even those he was closest to. Considering this, and the fact that chaos energy changes based on emotions, it's no surprise when Shadow loses all control of his Chaos. When he tells Rouge, she tips him off that he may be needing someone to help "tame" his chaos. What is the most surprising though, is the fact that he actually listened to her. #1 in Sonadow at one point

Shadow must embark on a mission, but Rouge isn't here with him this time, so he's forced to take Sonic instead. They hate each other, down to the very guts, but as the mission continues and they become lost in the wilderness, they must work together to survive the deadly harshness of the rainforest and the mysterious creature following them. (Eventual Sonadow) So that nobody thinks that I stole this story, I have an account on fanfiction.net where I am posting the same story. I decided to start posting the chapters on wattpad as well for the readers that I have here and also because it seems Sonadow is pretty popular on here as well.