<human>: Can you summarize the given text in a few sentences?

My wife and I just got married last month, we've been together for almost five years. She can be one of the nicest, if not the single nicest person you will ever meet out in the world. Behind closed doors is another story. 

When it is just us two, she has no filter. She says things bluntly and does not seem to care. I, on the other hand, always speak to people in a respectful way- I take pride in that. She can take the littlest things and make me feel like shit in nothing flat. My most recent example (though small, could you imagine this every day?):

Me- hey, do you want me to go grab you some cereal before I go to bed so you can have breakfast before work tomorrow?

Her- that depends- do any of your million cereal boxes have any cereal in them?

(she only eats one kind of cereal, though she was right, mine didn't have enough)

Me- no, I don't think they have enough.

Her- then why are they still there?

That happens for everything. I try to offer some help or something nice, she makes me look like an ass. Another example-

Me- I'm gonna feed the dog her medicine.

Her- I thought you were supposed to do that yesterday.

Me- you left me a note yesterday saying to do it today, not yesterday.

Her- well you've always given her her medicine, how am I supposed to know? Its irritating that you missed her schedule.

Me-*jaw drop*

When I confront her with this and say hey, I'm not invincible, your tone and the way you make me feel like a jerk all the time really gets to me, she refuses to accept that she might be wrong. She goes back and recites every conversation we had and explains why I'm wrong.

I can not live like this. Does anyone have any advice on how to get through to her? I would give her a taste of her own medicine, but I'd just end up apologizing. Unlike some people.
<bot>: MY WIFE IS RUDE AND WON'T ACCEPT THAT SHE HURTS MY FEELINGS FREQUENTLY. ANY ADVICE? (sorry, idk how to embolden =/ )