Weird random question

Between me and my boyfriend. It might sound stupid but I have two kids from a previous relationship and one with my now boyfriend. He tends to tell my kids that because he made them dinner or bought them something from Walmart the least they can do for him is listen to him and when they don’t he tends to call them disrespectful and tell me I need to show my kids some manners. Like the other day he made fish and rice my eldest son didn’t want his rice and my boyfriend got mad saying I made all this food thinking you’ll eat it and you don’t even want to saying it was rude. And he’ll never cook for him again. And had a problem with him standing by the table instead of sitting (he sometimes stands cause it helps him) anyways he went out to smoke and I followed telling him he was a little out of line. To where he said I was. But this is a constant argument. He tells my kids and even me that because he does something for us we have to listen or do something for him in return. I never see it that way I tell myself and my kids that it’s my job to feed them and take care of them and they don’t need to do things in return for me or him. But they should listen to us. And him upon reason. Because I don’t always agree with his ideas of punishment or something. So question is am I in the wrong here?