Am I wrong for being upset about my boyfriend's brother ALWAYS eating my food?

Anonymous
My boyfriend and I have been dating seriously for over a year now. He still lives at home with his parents but we are currently looking for an apartment of our own to move out to soon. Meanwhile, we are living at his house with his parents and older brother. I am currently 8 months pregnant and I sometimes will bring food and snacks from my house to his house and will put it in their pantry because sometimes I miss food from home. I don't label my food with my name or anything because I feel like it's just common sense that if it's someone else's food, you shouldn't eat it or should at least ask first before you eat any. Last week, my mom traveled to a different country and brought back snacks and cakes from that country for me to eat. I ended up bringing all of it over to my boyfriend's house since I was staying there but unfortunately, that also happened to be the week I had to go home for several nights so I left my food there. When I got back, ALL of the cakes and snacks were gone and eaten by his brother. This isn't the first time he has taken and eaten my food without asking. I don't mind sharing but at least ask OR, if you're going to eat it, SAVE A LITTLE FOR THE PERSON THAT OWNS THE FOOD. He literally ate EVERY bit of it and I'm pissed. My boyfriend doesn't think I should be upset because he says if it's in the pantry, it should be for everyone, especially since I was gone. Talk about taking food from a pregnant lady.
Am I wrong for being upset about my boyfriend's brother ALWAYS eating my food?
2 Opinion