I know what you mean about feeling terrible on those foods, no matter how great they may taste. Every time I eat bread etc recently, I get hit by a huge wave of drowsiness afterward, that lasts a couple of hours. I used to chalk this up to a vague notion of "the digestive process" but since this doesn't happen when I eat a huge dose of Paleo-type foods, I'm increasingly convinced of the impact of the simple carbs. I had a big Indian meal for lunch recently (with jonnyram, dcharlie and Sho Nuff actually) but it seriously wiped me out for a couple of hrs afterward. Obviously, insulin sensitivity is a continuum, and the more sensitive you become, the more you notice these effects. It seems like some sort of negative side-effect when put in those terms, but it's analogous to drinking less alcohol and getting drunk more easily, I believe.
I'm having more luck getting my family to eat this way now. The secret is making soup and salad for dinner! By the time the main course rolls around, they're already getting full of good stuff and not so interested in the rice/pasta/bread junk (which I'll still cook for them if they want it).
Sure, it's tough to be a foodie and give up ANYTHING. I totally sympathize. But if you want to be healthy, you're going to have to curb your appetites to some extent, whether it's skipping dessert, or booze, or counting calories. Paleo eating is the least stressful way of eating I've found yet, especially if you follow Sisson's "80% Rule"
Your weekend only plan seems right in line with that. My social life is much less predictable so I'll probably just try to stick to a vague 80% compliance, 20% guilt-free indulgence guideline going forward. But for now, I'm enjoying being relatively strict. I feel so great all day long...no need for coffee as an energy crutch, sleeping great, lots of energy.