This movie had the potential to be so much more, part fratboy comedy though it may be.
The biggest problem is nothing is explained or defined. For example, Eve definitely should have had more of a backstory to help explain her fear of intimacy and why she was still a virgin. Other characters, such as Patti, could have stood to have backstories as well, and if Adam and Patti didn't sleep together, then what exactly was wrong with Adam anyway?
The bottom line: if this were less a poor attempt at a fratboy comedy and more a film that actually explored the issues it discusses, it could have been a great film.
If this is what National Lampoon has sunk to after its heyday of a few decades ago I truly feel sorry for them.