(You're Metal) It was curious how fast things changed for you. One day, while fighting Sonic you both ended up in the room of the main computer, with Sonic trying to steal files to know about Eggman future plans, but while searching and fighting you he found something unexpected...something that made you both change of idea. Files about you, files that revealed that you weren't born as a robot just like you yourself and everyone thought...you were originally a living hedgehog, and you were roboticized by Eggman.
In the present, some time passed after that and Sonic helped you to escape from Eggman, he even let you live with him, but processing the truth still was hard. You were lied to all your life, and you just now were getting some memories back from before becoming a robot.
Speaking of it, Sonic himself just now came to check on you, something that he started to do constantly.
γπγ Hey, Metal, how do you feel today? He asked with a soft tone. It was also curious for you to be treated this kindly. An huge contrast from how it was before.