Need to vent - might be the end of my marriage

We have a 2 yr old and a 5 week old. Ever since I came home from the hospital my husband has been criticizing me more and more. I’m alone with our kids all day and do all the cleaning and cooking and laundry. He doesn’t help with anything. He only took two days off from work to help out at home and he didn’t do much. With each passing day his comments and criticisms get worse and are becoming more frequent. Yesterday after my 2 yr old being clingy all day and cluster feeding my newborn, I cooked dinner for him around 6pm. I knew it wasn’t going to be the best bc I cooked it an hour before he came home and I had to keep turning it off to tend to one of the children. He came home at 7 and I told him his plate of food was warm in the oven and i couldn’t get it bc I was feeding the baby. Well he didn’t actually sit down to eat until 7:30 and the food had gotten cold at that point and tough. He started complaining how it was inedible etc. I guess my frustration from 2 crying kids all day and lack of sleep got to me so I took all the food and threw it in the trash. He ignored me the rest of the night. Around 9:30 he decided to talk to me and told me he resents me and it’s just building more and more. That he realizes he doesn’t love me and isn’t happy with how I look or anything about me. He said he has expectations of me that I’ll never meet. That he lowered his expectations in regards to physical attraction, sex, romance but increased them when it comes to our kids and taking care of the house and I’m failing at every turn. He said if it continues that we’re going to end up divorced. I don’t know what to do to fix this. I get stuck in my head and internalize everything and get depressed and I guess it’s affecting how I manage day to day and didn’t realize it.