My fiancé and I were eating last nights leftovers when her son came over and asked for food. We didn’t have any left so I took some ground beef out to defrost and made him some burgers. Had some left over ground beef and fiancé was still hungry so I made her some nachos. I layered chips and cheese in a bowl, microwaved to melt the cheese and then poured ground beef on top. I bring it to my fiancé and she looks at me and says “that’s not how you make nachos. You always do this, you don’t know how to do something and you don’t ask for help. First of all, how am I supposed to eat this -“ and I cut her off there and said “don’t eat it then” and threw it in the trash. She does this often, when I cook she criticizes it. I can only think of one meal I made she didn’t criticize. She’s always trying to tell me how to cook but the kicker is, she doesn’t cook. She’s like a backseat driver and a backseat cook. For what it’s worth, I cook her and her son dinner every night (or I buy it) and I make her lunches. I’m fine if you want to criticize my food, but don’t give me a bad attitude and attack my character. I feel like I’m already serving her and her son, I at least deserve some gratitude. But anyways, after that I cleaned the kitchen and went upstairs to shower cause I’m pissed off. She’s just playing on her phone and ignoring me now. Did I overreact over something small? Should I have just let her do her complaining and not made an issue out of it?