your "vacation" has gone from being about the camaraderie and activities, to drinking. and with time still to go, you are more likely to say, well since we already PLAN on drinking on X day, we might as well have one now...........OR you'll have this first drink and Old Thunder will come flying out of chute #3.................remember your friends will be stuck with you if you get out of control. is that fair to them?
also, i notice you use WE a lot when it comes to drinking or not drinking. while i understand that as a couple it is easier if both are on the same page, but sobriety is NOT a team sport. you stay sober for YOU. don't be lemmings following each other over the cliff.....