Wedding Issue... Help/Advice needed?

You say that you know you are being a bit of a princess so come on girl and live it out! Be the princess. Instead of the one you 'think' you are just be the one you are- lovable, good, kind and caring. Keep him as part of your day and remember, everyone else knows him too. If something happens treat it as part of the 'plan' and ure him that someday you will most probably do the same when you might be his bridesmaid. Put it down to nerves and be the person you've been to him up to now. Instead of worrying about what he might do or where he'd wander off to, think about how he might feel when he realizes the person he knows and cares about, does not want him to share her big day. Now, it will only be one day you will have to worry about, later on, it might be for the rest of your life if you cut him out of this.