It would be so awesome if everyone could just keep to their side of the street, wouldn't it? Sigh.
My husband can't always seem to remember to turn the showerhead off after he's done, and he's an expert at hiding remotes when he leaves me alone in the house...but oh well. I'm sure I do things that bug him too -- but apparently we've both decided that we don't want to live our lives sweating the small stuff when we get so much good from each other that actually matters.
Have you tried telling him that his nitpicking is, in fact, making you feel like you have to defend yourself? None of us is perfect; the nitpickers in my life tend to do so to distract from their own BS. If he won't stop then you might have to find away to let it roll over you.