doesn't really matter whether you're being verbally abused, does it; whatever it is, you don't like it, and nor you should. He's a liar, he calls you names, he skives off work, he changes personality when he smokes. Why exactly do you need him? And why are you worrying about what to call it? Maybe you're trying to postpone things, but it's clear from what you say that you're unhappy, that he doesn't treat you as you want to be treated. That's reason enough to start thinking of an exit strategy.