Unforgiving Love Triangle

When Niall took Carly's sandwich in the 3rd year, an odd yet perfect friendship started. Almost 10 years later, when the Up All Night tour finishes, Niall starts acting weird around Carly. Both find themselves longing to be next to the other, but won't admit it to anyone. Will they risk their perfect friendship, or keep their feelings a secret? Or does someone else come into the picture, breaking up their friendship.