disrespectful/ungrateful

Ok so we have my brothers friend staying with us and we literally do all we can for him. We drive him everywhere we put a roof over his head we feed him. And its like he doesnt appreciate it. its like he acts as if we have to do what we do for him like he doesnt appreciate it and like last night he was being mean to my friends dogs and thats crossing the line like what did they do?? Then when we told him to stop he got tudy and started talking shit about my best friend and i (mind you we were at her house and he was there literally all day with my brother). He didnt mention names but like it was obvious it was about us then like i called him out like who the fuck does he think he is talking shit about me and my best friend IN HER OWN HOUSE, WHILE YOURE USING HER WIFI, EATING HER FOOD, AND WATCHUNG HER NETFLIX, LIKE GET THE FUCK OUT MAN