Hades had been through a few relationships.
It was to be expected, of course. One didn't get to be 2,000 years old without some experience. But he had always struggled. He never quite knew if he was saying the right thing at the right time, and none of the women seemed to stick. He always assumed that it was due to his mistakes and all the problems that came along with him, so although it upset him, he never wished for more.
Until Persephone.
With her, it was effortless from the start. He never had to stop and think about what to say or what to do. All the right things came out of his mouth at the right times because he wasn't worried about what to say. He simply said what he wanted to tell her, an easy pouring out of his love. He somehow seemed to be able to do everything that she needed at any given moment, a testament to her ever-present state in his mind. He had never thought that he would be capable of something like that for another person, had always assumed that such love just didn't exist inside of him.
But for her, he could do anything.