is this is consider rude?

okay sooo my boyfriend, of 3 months, showed up to my house with no invitation or warning, with his brother . I was in my pajamas and I felt embarrassed. we did the hot pepper challenge because he insisted and both got two cups of milk. he spitted on the floor, table, drunk half a gallon of milk, yogurt, water, and ice cream without asking. on top of that, he didn't clean his mess. his brother drunk a whole bottle of Pepsi and then before leaving, they went to fridge to grab two bottle of Pepsi, water, and a juice box while heading to the door without even asking. I'm considering to break up with him because I just think it's rude of both to invade my house. I feel used. I'm unhappy. I know someone is gonna say why I let this happen but keep in mind that this is my first relationship and I don't know how to set borders 🙃 I feel like I'm not ready to be in a relationship