I think we have an emergency

Is it bad that you get angry within a second of thinking of someone you don't like? I think so, but I can't help it, it's just like a reaction. Anyways, this person literally lied right to my face, he stood there, and lied right to my face, and I already knew the truth, finally after a long argument he told me, I started crying, put in my headphones and shut out the world. I let it get to me, and that never happens, honestly all I could say was k. K? I seriously had so many things to say. But I held my anger in and walked away.. But I honestly hate him now... He hurt me, and my friends, who does that, like could u be that cold hearted, I guess so, but I think we have an emergency because I can't stop thinking about just the things I should've said and beat him up... I have the worst headache ever!! I got 6 hours of sleep in the past two days!!! I went to a sleepover last night, and. One if the girls kept kicking the wall and talked in her sleep and cried when she hurt herself by kicking the wall, it was funny but I finally woke her up and then she started again so I threw a pillow then she threw like 6 sandals at me,,, ALL PF THIS HAPPENED IN HER SLEEP!!!!!!! So I'm off to bed,, goodnight, luv u, -signing off, Sam