Violence the answer?

Alright a few days cách đây my boyfriend decided he wasn't my boyfriend anymore and went after my hooker of a sister. I came trang chủ after a night with my frineds to find him, my sister, and one of her Những người bạn entertaining themselves in my bed. I left and I'm sure if they saw me hoặc mot but we've been having snow days so when I do get back in school hoặc the tiếp theo time I see him I'm just trying to figure out what to do....Any ideas?