Blimey !!
Don't cha just love weddings ?? !!!
Honestly, they seem to turn even the sanest of people into complete nutters !! And you guys are still a year away !!!
Just relax abit about it all. And as said, try actually talking to each other, not through other friends. Its way off, so just book the family room - then, see what happens nearer the time - no big deal.