I hate television too and see it as the NUMBER ONE thing that has led to the apathy of the masses and the wholesale meltdown of our culture into a crap-obsessed consumer-ocracy... And anyone who fakes a suicide attempt for attention or to prove a point needs a SHRINK. Your missus got issues. Counselor time. If she's gonna have a nervous breakdown because you smoke pot, her whole reality is way too shaky for you to hold together for her... she's got to hold that shit together for HERSELF.

It sounds as if your faith is serving you well, at least. I consider myself an agnostic at best, but one thing I know is that if any higher power exists, he would most certainly judge us on the good in our hearts and our kindness towards others more than anything else... something tells me that smoking a weed that needs no human intervention (like alcohol does) to provide us with its psychoactive properties (and if you believe in Creationism, then all plants are gifts from God- God did not, however, invent beer!) would be RATHER low on the list of priorities... somewhere AFTER making sure our damn brains don't turn to mush from too much Desperate Housewives...
To be quite practical about it though, you might want to tell one of her relatives she's playing the pill-OD game so they can talk some damn SENSE into that woman.
Good luck man, wherever your path takes you.