lol.. funny you should say that because I sorta came across the same situation with this one couple that I'm friendly with only replace the alcohol with marijuana in this particular situation. Basically, the chick in the relationship gave up smoking pot a few months ago on account of staying clean for job application purposes (in case she was to be screened) and so the dude had to give it up as well just out of "respect" for her or some dumb shit like that. So whenever we hung out with a bunch of people and a bong went around, he wasn't allowed to toke up so she wouldn't feel left out and honestly, it pissed me off to no end.