megumi came into your room in the middle of him having a panic attack because his sister died and he had lots of panic attacks and he held onto your waist really tight like you were the last person rooting for him. he looked really upset and just cried in your arms and after he did he said he should go because itadori and nobara would want him but he was relieved when you said you could stay and he started having a panic attack again. before telling you that his sister died. but it took Ages like i mean AGES to get the words out.