http://news.ninemsn.com.au/Health/story_35982.asp

This article could explain why women react and remember someone (male) when they have pheromones on. It seems women are more inclined to remember emotional intensive effects both good and bad. That is why pheromones seem to be so useful to men in this regard. It seems to be how their brains are wired, the hormonal impact then sets off events and they react to the feel good effect.