Kaylee and the doll

Ok, heres another question about my neice. I have this doll that is very special to me. I’ve had her since I was really little. Shes always on the top shelf in my closet, and one day my neice came over (the cussing one) and she saw the doll in the closet. I named the doll madisson when I was little, but when kaylee first saw the doll, she imediatly wanted it. I said no, shes a special baby, and that shes sleeping. Kaylee doesnt fall for it, so she starts screaming. I took her out of the room, and she threw a fit. The next time she came over, I gave in and let her play with madisson for a while. I told kaylee her name, and she always wants to take her home. Every time she comes over shes like, “wheres madison?” and I say, shes gone, or shes sleeping, or shes with her daddy. Kaylee went to my closet and opened it, and saw her in it. So I just let her play with it. She really wanted to take it home with her, so I gave herr a doll that looked exactly like madison, exept with open eyes. Kaylee wouldnt take it, and for some reason theres something rilly special about madison to kaylee. We put a lot of dolls infront of kaylee so she can ditch madison, but she never will. She wont play with any other baby doll besides madisson, exept jade which is the doll kaylee takes every where with her, but when shes with me she ditches jade for madisson. Wwell, jade is one of those small dolls that have the huge head, tiny dimples, and a hole for a mouth for its thumb to go in, so I can understand why she always ditches jade for madison, but I want her to stop playing with madison. Im thinking of getting her the same exact doll as madison at toys are us, where I got madison, but I know that will e for a while because her birthday is in august, and id have to save up my moneym, if thats possible. But for now, how could I get her to stop playing with madison?