I don't have any feelings for him anymore. I want a divorce, but he doesn't take it seriously. I really don't know why.

In similar situations, it is recommended to calmly think about your own thoughts and decisions and seek the help of professionals such as a counselor or lawyer. There were many factors to consider before deciding whether to divorce, such as financial situation, child support, family life, property division, and so on. If you think divorce is the best way to solve the problem, you can consider consulting a lawyer to understand the relevant laws and regulations and divorce procedures so that you can make a wise decision. You can also consider having an honest communication with your teacher, expressing your thoughts and feelings to him and listening to his reaction. Perhaps he had his own feelings and thoughts, but he did not express them. Through communication, they could better understand each other and find a solution to the problem. No matter what decision was made, divorce was an important decision that needed careful consideration. He hoped that he could find a solution to the problem and regain his happiness as soon as possible.