How in the hell do you respond to this?

So, the day before Thanksgiving, plans change due to my grandmother being in the hospital. I decide that I will try to cook a Thanksgiving meal at my own house, so my parents can eat here instead of at the hospital.

This is my first time cooking the whole meal, ever, and I get stressed really easily, so naturally I’m feeling a little frazzled.

My husband complained when I told him I had too many other things to do to make homemade dressing for tomorrow, and he apparently bitched to his sister about it. She just fucking showed up at my house, walked into the living room with a pan, and with this smug look on her face, said, “Here’s your homemade dressing and homemade gravy.” So I walked outside without even looking at her or my husband.

Nothing I ever do is good enough, obviously, even though I took it upon myself, on incredibly short notice, to make the house look really nice, and do the entire meal instead of just two dishes to take to someone else’s house.

If you were in the same situation, would you feel like your efforts were just thrown in your face? And how would you respond?