Love never ends.
Class roll will be checked at the beginning of each class. If you aren't sure whether yours is a valid reason, discuss it with the instructor as early as you're able . See the Undergraduate Catalog for the college's expectations and guidelines. You are expected to be prepared for every class by being ready to summarize and identify the major issues or themes in the readings, and bringing at least 2 written questions or comments related to the reading assignments, which you may be asked to share with the class. Obviously you won't be able to contribute during every class.