When you spend a lot of your time being best friends with Rouge, you tend to spend more time than planned exploring glamour as well as self-confidence. Shadow's a hard wall to move, for usually very selfless reasons. He's married to Sonic as mentioned before, wearing his wedding ring as an earring! Due to Shadow being artificially made, he can't physically grow any higher than the height he canonically is no matter how old he gets, but he can still physically age. But yeah, more of this kind of stuff to come!