She was his friends's ex. The gentleman code didn't allow him to think of anything more of her but as a friend. After they broke up, she confided in him. They went on to become good friends from friends, but the feelings were same. She was his friend's ex, so no !! She found herself enjoying his company and so did he. Available yet commitment free! They knew they couldn't be a couple, the families wouldn't agree. She wasn't ready for a relationship and he was just having fun! Before they knew, they started sharing a relationship which better not be names. They were the best of friends, comfortable, free, no bindings!
Times changes, she moved on, got into another relations. He started looking for love, though nothing changed the late night calls with each other. He could feel her pain. He knew her time of the month and he knew she'd need to be comforted, and he did! He knew what she liked and made it a point to meet her/ gift things to her. Then he found some one, some one whom he could confide in, spend time with. The long time calls with the good-friend reduced, but every now or then, they found time for each other.
Then one day, he wanted his love to meet his good-friend. She saw what he didn't see! The love, the care was far more for the good-friend. She asked him, but he never agreed. But deep down the good-friends knew that was true! They had fallen for each other, no rules, no code of conduct can stop two hearts from falling in love, can they! But now what?
So they continued being just-good-friends! Hurting their partners!