I think that is impossible to answer.

You may well not be doing anything wrong. It might just be who they are. It might also have nothing to do with their bipolar. If you suspect it is grandiosity, I don't know. Whenever I get it, it's all about ME ME ME!! Lol. I'M awesomeness incarnate, it has nothing to do with other people (like I don't get why someone would bother tearing someone else down when they already "know" how awesome they are). People might get on my nerves for being too slow (witted or moving, either one), but it's more an impatience thing. Is that the kind of thing you're talking about? Or am I way off?