A very annoying classmate, finally not together after graduation, but he kept sending me messages, ignoring him and still sending them. What should I do?

I don't know why you hate your classmates so much. Could it be that he often sends messages to disturb your life? A classmate can send you messages so persistently, but you always ignore him, and he sends them anyway. His feelings for you are really unusual. If you have him in your heart, communicate with him well. It's not easy to meet someone who is kind to you in life. It is better to look at this problem from another angle, instead of always looking at his shortcomings, look at his advantages. Maybe there will be a different feeling.