The people I live with...

I am ok with most of them except this one guy. He lives with his sister in the room which is first not allowed but I dont wanna give him problems about it but she does leave the bathroom a mess. He is rude and overall not a friendly person. He walks around like he is rich but he cant even afford to have his sister pay for her own room. There is no problem with not being rich but people should not put up fronts. As said in a movie "why cant we all just get along"