If the person you are waiting for happens to be waiting for you, then you are not waiting for the person, but missing out.
Qiu Sheng later discovered that along the way, he was just following Xia Sheng's footsteps step by step, but he also lived out his own self and became a better Qiu Sheng.
Xia Sheng later discovered that his journey along the way was just to wait for Qiu Sheng's approach step by step. The flowers blooming along the way were the most beautiful love letters in his life.
"I heard you were waiting for me."
"Yes, I'm waiting for you."
"What a coincidence, I'm waiting for you too."