AITAH for telling my sister to F off?

i’d like to preface this by saying this is stupid and it was blown WAY out of proportion.

a little background knowledge:

i (19f) live 10 hours from home due to university while my sister (19f) lives at home in my old bedroom temporarily. my grandmother passed away 2 years ago from cancer. before she passed the last thing she made me was a teddy bear from her old clothing. my grandmother and i were very close.

so my sister is coming to my house tomorrow to spend some time with me. i asked her if she could bring me a few things from home because i don’t have many opportunities to go home myself.

i had asked her to bring the teddy bear that my grandmother had made for me as i have been going through a tough time and felt like i needed a comfort item. my sister earlier this week had broken her finger, having it in a splint. she used this as an excuse to say she couldn’t pick up the (very light and average sized) teddy bear.

i asked her to pick it up with her other, perfectly fine hand, and put it into her packing bag. she insisted that she could not. i asked her to ask my father to pack it for her. she still refused. after suggesting more very reasonable alternatives i grew frustrated at her using her one broken finger as a crutch to just not bring my bear.

i scream at her over the phone to fuck off and hang up.

my sister takes this very personally. she is “furious” and “hurt” that i would tell her to fuck off. she gives me the silent treatment the whole day until i bite my tongue, be the bigger person, and apologize for using harsh words. she claims she “doesn’t deserve to be treated this way” and does not accept my apology. she tells me that “i don’t deserve the bear anymore”

my emotions bubble over. it’s a teddy bear. that had nothing to do with her, yet she inserted herself into the matter and believes she is the most important aspect in this whole ordeal.

i reinforced the fact that this is a bear made by our dead grandmother and it holds emotional value, whether i deserve to have it with me or not is not something that can be decided by her. i told her if she is in too much pain to bring the bear then she is in too much pain to come to my house. she thinks i am being selfish but i am just at my wits end.

AITAH?