As documented in a different thread, I love my wife (or, as much as I could love anyone, given that I'm a dispassionate guy).
However, things I hate:
She can't pack the dishwasher properly (i.e. my way)
She's a total technophobe and Luddite (probably I should love this too, given that I might occasionally neglect to delete certain things and she has no idea of the existence of UKP or AW or anything like that).
She hates foreign films or TV shows with subtitles.
She doesn't accept that she's beautiful. I sort of love that as well as hate it.
When other men talk to her she just thinks they're being pleasant and friendly and she is totally oblivious to the fact that they want to get inside her knickers, so she's friendly back, and they think it's a come on and that they're "in", and then I come back from the toilet or whatever and some twat is hanging around her and I have to tell the guy to back off, and then I get "Why were you so rude? He was just being friendly" God, gimme strength! (Okay, must remember to breathe! Where's me blood pressure tablets?!)