Dude, you're reacting like you only read the first post. From her other posts, it seems there is more to her thoughts and feelings than just the packs of smokes.
Same thing goes to you. And if she decides to quit vaping, or not, in the end it doesn't matter. She can leave him for whatever reason she wants, married or not. It's her life.
So let's say a man leaves him woman because she doesn't "put out enough" is that wrong to you..? That's petty.. just like leaving someone because they don't like vaping.