NO, he is straight, regardless, and nothing involving relationships between the characters have been confirmed. Yet.
No
It is quite possible that shadow will marry Amy but don't know how. Sonic might have a change of heart and decide to marry Amy but only time will tell. :)
It hasn't been confirmed yet by Sonic Team, so you'll have to wait, but it is more than likely that Sonic will eventually fall for Amy, as she is literally the only one who loves Sonic. It is impossible for Amy to marry Shadow, because if she were to grow up as an adult, Shadow will still have his teenage appearance as he is immortal.
because they are all idiots, Shadow loves Maria! But he did marry sally because, he saved her life but then shadow wanted to get divorced.
No
Nope. They fight each other on numerous occasions, but Sonic is never killed by Shadow, nor vice-versa.
Of course not. Silver's future is 200 yeasr ahead of the time of the game. Shadow might live that long, but Sonic or Sonic's kids (if her ever had any) wouldn't.
no sonic is not stronger then shadow . shadow is stronger then sonic . in the shadow the hegehog trailer shadow killed sonic
Shadow married Sally in order to become ruler, for he had conquered the kingdom, so he had the freedom to do so.
It depends on what you think and what others think
Shadow is a Hedgehog like Sonic the Hedgehog. He died but Dr. Robotnik (Eggman) made a Andriod copy of Shadow the Hedgehog. Shadow is always grumpy. But if he ever forgets who he is he will do anything to get his memory back. Even destroy Sonic the Hedgehog.
If you watched the Japanese version of Sonic X it will show you that Shadow never died.