this has nothing to do with weed really. you are unhappy with your marriage overall. bail out now before you do any more damage to yourself or her.

edit: ok i read my post again and realized i sounded like a wanker. i stand by it though.. don't really know of a nicer way to put it. you just kept saying you felt that your marriage was a mistake. i get all worked up when i see or hear about people wasting their lives away in unhappy marriages. most people do it for whatever children have resulted. you've no children! pull the chute cord! get the hell out! rent a place on the shore and smoke to your hearts' content! i am however a bit confused as to your current religious status.. perhaps her leaving you would bother you in that regard, im not sure. you sound both rational and compassionate though. for that, i wish you the best!