Nope
No.
No, they didn't.
No.
Yes Sonic takes Amy Rose on a date. A Sonic comic named Valentine's Fray (look it up on youtube.com) is where Sonic takes Amy on a date.
No. Sonic doesn't even love her.
Amy Rose his girlfriend
Yes, everybody knows it.
SEGA probably won't ever have a Sonic couple made official. So no probably not.
The Sonic character Amy Rose debuted in 1993 from Sonic CD
Sonic the Hedgehog does not love Amy Rose. She is just a fangirl.
Yup. When he didn't agree to go out with her, Amy decided to take matters further.
Amy Rose loves Sonic, but nobody knows what Sonic thinks about Amy.