***UPDATE*** Arguing over money (long post/need advice)

My spouse and I constantly argue over money. When we got married we decided to join our accounts, since then it has become a huge issue. We have since been splitting our money evenly. I work part time and take care of the house and he works full time at the same place. Our money goes into one account and bills are paid and the remaining money gets split 50/50 to make it fair. A big thing we argue about is groceries. He thinks I spend too much at the grocery store. I admit, I used to spend a lot of excess money but have cut back a lot. This last pay period he took off 4 days of work to go on a trip with his friend. His paycheck was less than mine because of this time off. I told him we didn't have much money left over after we paid our bills because of his vacation. I said we would go to the store and stock up on much needed food (pantry was empty since he complains when I buy food) since we wouldn't have money to eat out a lot and just keep the remaining money together. We went to the store together and I spent $135 on basic, easy food. Soup, bread, snacks, bathroom products, stuff for SD lunches, etc. When we go home I told him we would split the remaining money since we was planning on taking SD to the movies and I wasn't invited (he wanted to have a date night). I said if he was going to go to the movies it would be only fair to split the remaining money since it was something he decided to do and I should have a even amount to spend on myself. He flips and tell me I scammed him into letting me spend that much at the store and that I should have told him before hand we would split the money and he wouldn't have let me spend so much at the store. He said that I did what I wanted to do with the money first and now I want to split the money. He thinks spending money on groceries is something I decide to do and I should suck up the cost for it. I paid for all the groceries last pay week while he was away and didn't ask him for money since he needed it while he was out of town. He doesn't want me to spend more than $50 every week. I said we needed food since last week we were struggling since he went out of town and blew his paycheck and we are everything we could at home. I told him since we didn't have as much money this week we would need food for when we are off since we didn't have any left. He would rather eat out and said we would have money to eat out of you wouldn't have spent it all at the grocery store. I'm so tired of arguing about grocery shopping. He feels like if I want to buy food then I should pay for it since he would rather eat out but when he runs out of money he will be the first one trying to eat the food at home. I don't know how to make him understand that normal people spend money on groceries and way more than we do every 2 weeks. Help please!!!!