There had been regrets from the beginning.
He regrets the circumstances of their first encounter, blowing her out of the ring and ruining her championship title was not the way to make a good first impression on her. Though she'll give him silent praise for his bravado later, but never will admit it.
She regrets his misfortune, their misfortune. A group of children should not be placed with the weight of the world on their shoulders, though she loved every minute of it, and still does, nearly fifteen years later.
They both regret the beginning of their loving each other. It was a mutual friendship that thrived with progression in secrecy. At first it was without permission, unexpected. It was hard to accept once the realization hit, leaving for awkward situations and invisible tension in the air. Plenty of evenings of static accidental touches, rosy cheeks and fast beating hearts.
But so, so glad they are of the way time has brought them to now. All of those regrets, little inconveniences are long forgotten with the warming of his skin under her fingertips, followed by lovely whispers. Forgotten when nothing matters, exists, in the world except for the other. And in those moments a little thought flashes through his mind that no matter what the regrets between them are today, or what regrets may be made in the future, can not outweigh the feeling of joy they make together.
When he tells her this in a soft voice, he smiles, she tilts her head to hide her warming cheeks, and his heart swells. The small conversation is finished with a kiss, then lost into the night.