Barbara can't believe her son did such a thing. She always saw her son as someone innocent and timid, someone who doesn't like to get into trouble, but now he has done something really stupid.
If it was just any other girl, it wouldn't have been a big deal, but he decided to ask out a teacher, that too, from the college. Being a mature woman, she knows how rumors can ruin one's career, especially a teacher's. it doesn't even have to be true, but a rumor about a teacher dating a student can ruin their career.
Knowing that her son almost put a teacher's career at risk made her very angry with her son.
Seeing that her son has no answer for her made her even more frustrated.
"Mrs. Dillons, there is more." Before this blows up, Amon interferes and drops the bigger bomb to completely put Barbara's mind in turmoil.
"There's more?" she asks with concern.