Girls, you had a question? Jealousy among children????? I explained to…

Girls, you had a question? Jealousy among children????? I explained to my daughter that she will have a brother and he loves her. She started crying and screaming at me. Yesterday she asked if the brother would come, would you throw him out??? The brother is not needed to me!? I'll give it to my grandmother so she can play with him. I didn't answer. But was shocked, she's not 2 but she already resents both father and me. And says that my little girl, I won't give him up. It's been 4 months since we finished breastfeeding but she remembers? I don't know what to do now??