I think there's a little more too it than that. Getting married to someone means... [Thinks for a moment] It means you love that person and you're not going to be with anyone else romantically but them, that you want to spend the rest of your life with them. They're your best friend and you trust them and care about them more than anyone else. It's different from just dating because marriage is more of a... serious commitment to each other, to take care of and support and be there for each other through everything, whether it's good or bad. If you're married to someone and you walk up to a stranger you've never met then say 'this person is my husband' or 'this person is my wife', they'll understand you're saying all that stuff I just said, except you don't need to explain it because that's what being someone's husband or wife means.