account for bettys condition ?

While the girls want to stay out of trouble for dancing in the woods, they eventually do say that she is witched. Her condition, according to Rebecca Nurse, is something she "will grow tired of" when it becomes less of a game, in Rebecca's estimation. Probably, she is just reacting to shock, but she hears what is going on around her and when she "wakes up" she notes things Abby did and did not tell the Reverend Parris.