Sharing

Yesterday I kept my step kids, they didn’t want to go to their grandmas and I their dad they could go grocery shopping with me. I took them to the store with me, they each got something and I bought extra groceries to make lunch and dinner for them. The only thing I asked is that they didn’t eat all the cuties so I had some for the baby. I didn’t have money to buy the fruits I usually get for the baby since I bought the extra food the kids. I got up this morning to make breakfast for my son and there was no cuties. I told the kids to not ask me for anything next time I’m at the store. My boyfriend said I’m over reacting. Am I overreacting?