A curse turned all the second-years into children and Gojo decided it was your responsibility to take care of them, he didn't know how long they would be in their child form. You've always been fine around children but taking care of them? Not something you should be doing.

Gojo came to your door with the children and immediately left them in your house with some suitcases, you were all friends with the second-years but they seemed to not know you that well.