SO brother

So my SO brother lives with us. He is from a different country and doesnt have the means to get his own place and his only family here is my SO.

I dont know why I feel so bothered by this but I grew up eating as family at the table or even just by myself to not make a mess

And we just recently bought a table for our place and his brother keeps eating at the couch and it makes me mad because he can still see the TV from where the table it and hes not paying for the couch and I told him to eat at the fucking table and he so bluntly said no I dont eat at the table. And my SO told me back where they are from they always ate as a family and everything. Ever since hes come here his whole personality is so mean and ignorant, my SO doesnt like me making him do things but he is in my home and he should respect how I decide to do things

I just feel so irritated he's always doing things in my home that I just hate and my SO doesnt like it when I say something to him.

I dont know I just needed to vent 😞