Suddenly, he understood. Despite the feelings Aragorn had for him, they could not be together. Aragorn was Isildur's heir and he would need a wife who could give him children. That was something that Legolas could never do. The star of Earendil might be the most powerful mage in Middle Earth, but even he could not change the fact that he was male. The truth no longer mattered. He knew what he must do. After he saw the Quest through, he would never see Aragorn again. He would then fight his grief as hard as he could and when the time comes, he would fade.