The Buddha said that there are eight sufferings in life: birth, old age, illness, death, separation from love, not being able to get what you want, and not being able to let go.
Chen Lin happened to meet the person he couldn't ask for. Meetings in life are very delicate, and they can be missed by a thousand miles. If he had met Wei Yanshu earlier, wouldn't the process have been so bumpy?
Wei Yanshu went round and round and couldn't figure out who was the true love in his heart.