Revised. So he broke her heart, she came back, and it all leads back to the alcohol. It's the only explanation as to why she keeps glancing at the black hedgehog. And probably why Sonic keeps looking at her.

Amy gets caught in an unexpected rainstorm after chasing Sonic. She never expects to be rescued, let alone by Shadow! Shadow takes her to his house and his emotions reach an alltime high! ShadAmy OneShot