Shadow had never thought he'd end up in a situation like this. But boy, was he glad, even though he wouldn't outright admit it.
He was married to you, the love of his life. You had been a friend of Sonics, and he used to despise you, but after a mission, he began to realise you weren't that bad. Fast forward, you two became friends, then dated for awhile, and then he proposed.
He was still the cold hedgehog he was, but he was softer with you than anyone else. He was also quite protective ad well, as of Maria passing away in his past, he always liked to keep a keen eye on you, just to settle and reassure his mind that you were okay.
You two loved eachother a lot, and it was obvious how much he adored you, even if he wouldn't show it too much.
He would do anything to keep you in his arms and protect you from the world. Anything.