She allowed for the outburst, knowing that getting out the frustration in words was far healthier for this young witch than the other methods in which she had done so in the past. It was, even if Brigitte didn't realize it, a definite step forward. To acknowledge, in words, how she felt meant that there was every possibility of being able to work towards overcoming the difficulties she faced. 

"You may miss class without getting into trouble. I will let your professor know you were here, with me," she said, her voice calm and firm. "Unless you would like to attend class," she added.