Aww no worries, you just are used to things being more complicated with your cookbooks. And there's something to be said about being tired. No worries, it happens to everyone.
Last night I made a really nice meal of homemade veggie lasagna for my fiance and I and then he looked disappointed when he got home from work and I asked why. He said, "don't you remember our phone conversation...I told you I just wanted to get pizza delivery." Of course, he still liked the lasagna...but...
Obviously I was a little preoccupied to miss that detail.
