27 years.

"Alex. I can't take it anymore. I hope you understand." She whispered in his ear as she walked away.
"No.. please come back." He whispered.
"Alex, I can't." She paused as the tears streamed down her face.
"Li-"Alex began. "Alex, I'm sorry. I love you." Lilly whispered brushing his tears away.
"I don't understand why you have to do this.." Alex choked out.
"Because I want to be free."

Lilly was a torn up girl lost in her own world.
Alex was a sweet bad boy who didn't bother to care.
They fell in love, and Lilly left leaving Alex broken.
They finally found each other again, 27 years later.