When two werewolves fall in love, they must.... well, what?? ?"Expressing their beastly forms" is what the want to do.? What must they do to live happily ever after?? ?
Keeping their identity and their relationship covert is a transient solution.? What is the permanent solution (objective goal) they seek to their predicament?
In a romance -- which is what this essentially is -- the dramatic question arises not from who the characters are but from what they do, to wit, fall in transgressive love. What is so forbidden about their relationship?? They're both werewolves ;? the relationship is exactly what is expected and acceptable for two werewolves.