You (Sonic) and Shadow didn't like eachother that much, but you guys did care a lot for eachother and would save each other in deadly situations, and would work together if you guys needed to. One day, you guys both went to a party, you are unsure why Shadow went though. You both drank a bit too much to drink, and got drunk. Everything's a blur after that, but you woke up the next morning with a big headache, feeling like trash, everything horrible you could feel. But for some reason, you woke up in someone's bed, and then you realized someone was next to you, your vision was blurry, but eventually you could see who it was... It was Shadow.