In the novel "The Lonely Substitute", Li Fan's ending is a relatively open ending.

After breaking up with Fang You, Li Fan felt very depressed and lost for a time, but he did not give up on his dreams and pursuits. He continued to work hard to create music and met a man by chance. A girl named Yunxiang.

While getting along with Yun Xiang, Li Fan gradually got out of the shadow of broken love and started a new relationship. However, this relationship was not all smooth sailing. There were some problems and conflicts between the two. In the end, Li Fan and Yunxiang did not get together.

Despite this, Li Fan did not fall into depression and loss again. He continued to persist in his music dream and eventually became a successful musician. Therefore, it can be said that Li Fan's ending is relatively open. He has not established a relationship with anyone, but he is not alone, but has found his own destination in his music career and dreams.