The essential oils that are used in aromatherapy are great for romance because the scent goes straight from the nose to the brain. The scents are really chemical messengers that cause your brain to respond. There is a large body of research that shows the pheromone properties of essential oils have a stimulating effect and more personal care product manufacturers are are incorporating them into their perfumes and skin care care formulations.
The oldest part of the human brain--the limbic system--is greatly affected by scent. Since the limbic system is tied to our emotions and memories, the effect of scent can be quite emotional. An even more stimulating thing about essential oils is that long after the scent has disappeared, the effect lingers.
You can use essential oils in your everyday life, but remember they are very concentrated and applying directly to your skin can cause burns so make sure to dilute them with a carrier oil.