Here is another take on the chemistry of romance. I am approaching the romantic picnic as an emotional experience. Location, food, accessories, etc. have emotional elements. I have also talked about research that shown different chemical changes related to romance. Do you realize that designers see dollar signs in your emotions? What science is increasingly showing is that the same places in the brain that register comfort and contentment also happen to light up when people are shown familiar products and brands.
Will romance be measured by chemicals like endorphins and Neuromarketing technologies like fMRI, EEG, and facial coding to gauge true emotional response? Is it possible that designers will use emotions and romance using these means to measure it? With companies going to 3D design and virtual environments such as Second Life it give one much to think about. Check out Futurelabs take on neuromarketing.