I can't see them lasting more than a couple of years, 2 being the absolute max imo
What I find odd about the whole thing is the fact her whole circle are very clearly big on the coke, I don't understand how that logistically works? I used to have a coke problem and have had to completely remove everyone from my life who still does it (except the odd coffee date with a couple). I do still drink alcohol though, maybe the fact he doesn't makes the impulse control easier? I can't fucking stand being around coked up people though and when you're sober it's completely worse