What are the tears that make people cry once in the classic TV series My Ugly Mom?

In this play, the mother who came from thousands of miles away with the money to buy a house wanted to plan the wedding for her son with joy, but she didn't want to be treated as a stranger by her son. At that time, it would hurt her to sit on the ground. This kind of rejection is unpleasant, what's more, the person you love deeply doesn't like you, and no one can accept it. Even so, the ugly mother tried her best to bring her favorite food after her daughter-in-law became pregnant and secretly put it under the windowsill to leave, so that her son would not talk about her and her daughter-in-law could eat what she loved. She never considers her own feelings. A kind mother tries her best to make her son's marriage happy, but she has to endure the abuse and bullying of the nanny. Never complained about anything. The place where I cried the most was at the end, and Zhao called out' Mom' from the bottom of his heart. You are not an ugly mother, but you are a beautiful mother in the world. Even few people don't cry when they see this side. How touching, tears in their eyes suddenly rushed to their eyes, and they turned around there, knowing that they could no longer stop the car when their affectionate mother shouted, and the surging drops were accompanied by a simple heartbeat frequency, for love.