My dad just yelled at me and said I’m ungrateful and spoiled.

My dad is just the most irritating person in the world. He got diagnosed with diabetes about 6 months ago and even though they told him he can still eat normal food, he makes everyone stick to his diet and he always complains about the food. I even caught him eating his “forbidden” food while I was making dinner and when I asked him about it he said it doesn’t count because he’s hungry. Like what the hell even is that. My brother and I are sooo sick of his eating habits and it’s effecting us too because we can’t eat what we want even when he’s not home.