@Uncharted - I also got hammered at my own wedding last year, and although it wasn't a total disaster, my hubby and two of our friends had to help me up to our bedroom, when I promptly passed out on the floor under a table... in my wedding dress - classy! I then spent the day after our wedding horribly hungover, so that was great fun for my new husband, and a total waste of the lovely bridal suite! ;-)
I've now - FINALLY after 20 years of drinking from the age of 16-36 - realised that I have a problem with drink as I can also go weeks without a drop, fine, but it's when I'm out socialising and drinking that I'm like you - one minute ok and sipping away happily and the next BOOM, I'm a blacked out mess. I can never tell where my tipping point is until it's too late, but once I'm over it it's guaranteed to be a disaster.
Don't let the drunk 2 hours of your wedding cloud your otherwise wonderful and happy memories of your day - every bride gets nervous on her big day and I'm sure 9 out of 10 have a drop too much to drink, so don't regret anything as it's all in the past now.
Look to the (sober!) future and take one day at a time. I think for occasional binge drinkers like us the whole moderation thing just isn't EVER going to work, so quitting the booze is the only option. And it's a great, positive, brilliant option that involves a clear head every day, no drink-related regrets or anxiety ever again, no more hangovers (woohoo!) and just a happy future to look forward to. Every sober day I wake up I think "wow, this is how great I'm going to feel for the rest of my life!" and that's a wonderful, happy thought!
You're stronger than your AV and can tell him "NO!". Each little blip along the difficult road to sobriety can only make us stronger and warn us of what our triggers are that we need to avoid in the future.