What moment made you feel that your heart was cut by a knife?

I went home to visit my relatives once. On the day I left, my father drank at noon and my relatives took me to the airport in the afternoon. The airport is more than an hour's drive from home. On the way, my mother called in tears and said that after you left, your father kept crying at home. My heart ached in an instant, and now I dare not recall the scene of that day. I can only tell my mother to persuade my father again. All three of them were crying on the phone. After a while, my mother called again and told me that I still couldn't persuade her. Just now, I told your father that if I can't bear to part with my daughter, I'll go after her at once (which means catching up with her), so my father went to drive, because he couldn't drive because of drinking, and asked my cousin to help me drive. On the way to the airport, I stopped at the roadside and waited with my relatives who saw me off. My cousin kicked my parents out of the house, and I cried like a dog on the roadside. I got my boarding pass at the airport and sat at the security checkpoint for a while. My mother reminded me that it was almost time to go in, and my father put his hand on the suitcase without saying a word. The third time, time was really running out. I said I went in, but my father still didn't talk. God knows, tears came down at the moment I turned around, and I didn't even dare to look back. We are reluctant to part with each other, but I still have a job and children in the distance, so I have to choose to continue my journey. That afternoon is the last day I want to remember in my life. Every moment of heartbreak, I will cherish it in my heart, which is my most precious memory. Dad may not be very talkative at ordinary times, but I know that he loves me, which is enough. Filial piety in time, do my best and use all my resources.