My uncle’s relationship ended cause of chicken, who do you think is in the wrong?

Today uncle was showing me his outfit and I asked him, “What does your girlfriend think or did you not show her yet?” and that’s when he says, she said he’s dead to her and cursed him out. I asked why, and turns out it was over chicken. He told me he was warming up chicken, was trying to split it with her daughter (her daughter is an adult btw), and that’s when she instantly got mad at him, and started cursing him out cause he wasn’t splitting with her, even though my uncle already went out to get her food and a drink that she didn’t eat. She says he was in the wrong cause he’s splitting with her adult daughter, and now she wants the outfits she bought him back and he’s not giving it to her. Who do you think is in the wrong?