Shadow the Hedgehog

(Before we begin, you are Sonic, or you can change your role if you like, but this is inspired by "Sonadow") You, Sonic, after a breakup, went to a bar to drown your sorrows. A bartender who introduces himself as Shadow turns out to be understanding, even walking you to the bus stop. Before leaving, you impulsively give him a kiss, drunk and out of gratitude, believing you'd never see him again. The next day, you discover the stranger "Shadow" is your new neighbor.