Neptune is the second of the generational planets, spending fourteen years in each sign. Everyone born within that period will have Neptune in the same sign. By itself, this placement is not the most important factor in your chart; however, it symbolizes what was going on in the world at the time you were born, and this has left an imprint on you.
You and members of your generation are each imbued with this particular energy, and in some ways it characterizes everyone born during this time. Each individual will express it in their own way, some more strongly than others. The Neptune-in-Libra generation idealizes relationships and yet is in a great deal of denial about them. You and your group have certain unrealistic expectations about the ideal partner, instilled largely by carefully crafted images on TV and in movies and magazines. Of course, hardly anyone in real life measures up to these ideals. So relationships have been a difficult trade-off between keeping up the illusion or admitting disappointment and defeat in what was supposed to be a perfect relationship.