How could a plot in a novel be considered torture?

The plot of a novel can contain all kinds of elements, but the word "abuse" usually refers to emotional abuse and pain. Here are some of the plot elements that could be considered "abuse": The protagonist experienced great setbacks and pain, such as long-term loneliness, loss of loved ones, betrayal, loss of job, etc. 2. The protagonist suffers ruthless blows and abuse, such as being imprisoned, tortured, bullied, hurt, etc. 3. The protagonist has experienced a long period of pain or suffering but ultimately did not succeed or solve the problem. For example, he has been lost in the process of searching for treasures or pursued his dreams but ultimately failed. The protagonist is forced to make a painful choice or make a difficult decision such as being forced to separate, being forced to choose, being forced to make a moral choice, etc. The protagonist suffers emotional trauma and pain, such as losing a lover, losing a friend, losing a family member, being betrayed, etc. These elements could be considered as elements of the "abuse" plot, but whether they constituted the "abuse" plot depended on the plot and theme of the novel.