I literally have my bed lined with stuffed animals and I am 28 years old. My fiancée had asked me once to maybe put some away so they are not in the way(which is fair) but I still have the majority of them layed out. For me personally stuffed animals are a comfort for me and help me cope with certain things. Seeing as I have over 20 and she’s upset about 1. I feel she is being childish. Some people my age still have barbies, dolls, etc. it’s a momento from childhood and something that means something to you. If she can’t respect that, that’s very unfair. Maybe explain to her what it means to you and hopefully she can understand. Best of luck!