My Ex-Wife Came Back with Money to Get Back Together, and My Current Wife Panicked

Four years ago, she abandoned her three-year-old twin daughters and left the house without taking anything with her. I thought I would never see her again in this life. Four years later, she appeared at the school gate, wearing a coat I couldn't afford and holding the money I couldn't repay. She said that she left in order to make money to pay off my debts and encourage me to start my own business again. She said now that she had achieved financial freedom, she wanted to come back. She said she was still the child's mother. But I waited for her for three years. I took care of my two daughters alone for three years. My sister asks "When will mom come back" every day? My sister never asks, but I know she remembers everything. Later I met Xu Zhiran. She is the owner of a clothing company, divorced, more mature and sober than me. She never said she loved me, but she would stay up all night when the child had a fever; She never makes promises, but she helped me support my family when I was in the most difficult time. I thought things were finally getting better. Until the ex-wife comes back. My current wife panicked in front of me for the first time. Everyone told me: That is your child's biological mother. But no one told me—— A woman who left you when you were at your lowest, With a woman who chooses you when you are at your lowest, How to choose?