He appears to think that a quarter of the footpath is quite enough for someone going in the other direction (he does it to men too, he's an equal-opportunities arsehole)
He vocalises his sneezes
He is almost cured of continually ensuring he walks three inches ahead of me
He is almost cured of turning his head to talk to me while he's driving
(we've been together over three decades)
He still says "my house" and "my car"
He (I believe genuinely) mis-remembers things so that when telling people about our decisions he'll make out that he was the one who persuaded me into it, when it was quite decidedly the other way round
... but the most bloody annoying thing he does is, when you have made a statement or put a view or something, his go-to immediate response is "no" - so he will start by saying "no,..." and then go on to spend about three times as long as he needs to in demonstrating that he actually completely agrees with you.
Which quite apart from anything else suggests that he wasn't actually listening properly. I called him out on it once, and I'm not sure he believed me.