If you smoke pot and your in a relationship with someone who doesn't.. Its almost impossible to get along. Different morals.

try to find out exactly why she's not cool with smoking. some people have are unflappable when discussing their personal beliefs or moral code but if she's more receptive to hearing you out, present her with the facts: http://www.lycaeum.org/paranoia/marijuana/facts/mj-health-mythology.html

i don't think it would be something you can overcome within one night but it'd be worth it to smoke then fuck all night, right? it would. word.