My son, his son, whose son? To restructure a family, money comes first

I'm almost fifty years old, and the first half of my life wasn't easy. Married to her ex-husband in her twenties, she experienced a seven-year itch. She did not keep the marriage, and her ex-husband cheated and divorced. My ex-husband and I separated peacefully. Instead of asking me to pay a penny of child support for my son, he gave me $20,000 to leave my original home. I was in my early thirties, but I was so disappointed in my life that I even decided never to get married again. In this regard, the author proposes that "emotional stories" reorganize the family, money first, my son, his son, whose son?! After the divorce, I went to a new city to live, where I met Liu Zhen. I was working in a restaurant at the time, and Liu Zhen was the chef there. Because I've had the same experience, after a while, we have feelings. Liu Zhen had two sons, the eldest son was only in elementary school at the time, and the second son was only two years old at the time. I will treat my two sons as my own sons, and this pain will be more than ten years. Today, Liu Zhen's two sons have grown up. The eldest son is now a college student, and the second son usually does not have much time to come back because he is in boarding school. Recently, there was a serious problem in our family, which caused me to have a serious quarrel with Liu Zhen and his two sons. It is that my biological son is now old and needs to buy a house to get married, but his father can't raise a down payment of 200,000 yuan for him, so he hopes I can help him. Naturally, he wanted to help his own son, so he consulted with Liu Zhen on whether he could pay 200,000 yuan to help his son pay the down payment. Over the years, I have helped Liu Zhen raise his son, and my own son has not been cared for for so many years, let alone spent a penny for his son. Now, my son wants to get married and asks me for some money. I think it's reasonable to give some money. But Wanwan did not expect that Liu Zhen did not agree. He even said that the son had nothing to do with him and that he would never give him half a penny. My heart is cold. Over the years, I helped him raise his two sons and never cared about the money spent on them. But now, my son's lifelong event wants me to give some money, but Liu Zhen is so unwilling. He didn't treat me as a family member at all, and even thought that I was a nanny from their family who didn't need money, so he treated my son as a stranger, which was a bit cold and heartless. I was really chilled and wanted a divorce. I discussed with Liu Zhen that even if 200,000 yuan is in difficulty, the 100,000 yuan is always OK. But Liu Zhen was not even willing to take out 100,000 yuan. Later, I said that I would borrow 100,000 yuan first, and my son could pay it back slowly, but he was still unwilling. I was really disappointed and I was filled with chills about this home. I want to get a divorce. This kind of life without dignity is boring.