Other than being a total fuckwit?
Two examples, I mentioned an item he had and commented on it being new out . He then goes into a long speech about how I must remember that he got it over a year ago at XX and he can't believe I've forgotten. I then found out it was only released two weeks ago 
I couldn't find an item I swear I put on a shelf, much hunting for said item over a long period, asked him several times if he'd seen it. Then day later he produces it and says I should of put it away properly... he was teaching me a lesson to tidy up.
I should mention he doesn't know I'm preparing to leave him. But I find this behaviour really odd.
There must be a name for it ?