Basically it depends upon how serious you think she is with the testing threat and how bad she will freak if she catches you. Weigh the risk against the reward.
Why dont you chill it for a bit, then bring up the discussion and tell her you intend to smoke on occassion socially and not be red eyed every day because you respect her wishes and her need to be convinced that you can handle smking without going overboard. Start small and as she gains respect and trust and you gain control over your urges to smoke daily you can both have a new perspective.
In my opinion at your age there are many many more things to be concerned about and focus upon daily than smoking weed. Get to know who you are before altering your consciousness daily.
Nothing wrong with daily smoking if it is more than just giggles and escape time. Youre building the foundation for your future daily. Maybe its best not to build it on weed. Moderation will go a long way to educate both of you.

peace.