My crush doesnt like me?

SO i look this girl, the most popular and beatuiful girl in the school. I feel stupid. I just came to this new school and she, Triza, had to be the person i liked. Worst part is shes the only girl i like and would want to like. Other guys like her too. She started hangin out wif me..she was obviously interested..then this guy, one of her friends, good friends, got mad jelous of me, he started talkin sht bout me, n buggin me, but when I was walkin home one day, he came out nowwhere and pushes me to the ground, i said chill, and he started talkin bout my family, i got so pissed, i couldnt take it, i got up and rocked him like 3 times in the face and head then i puched his eye. the fought back but didnt get me. I was just so mad. I got his head and banged it against a car window. He started rockin me in the face, but i punched him again and he started bleeding and half/crying. I calmed down, and saw what i had done. I got mad upset. What makes it worse is that my crush Triza was right behind us. After see'in what id done to her friend( a guy who also liked Triza ) she started cryin and currsed me out, i tried to explain and she just told me to shut up, and she went away. I kinda starting tearing. She thought of me was a violent person now....I want to say sorry, but i just cant..and that kid who ****** around with me, he doesnt anymore but damn i guess my crush doesnt like me anymore...im really sad. WHAT CAN I DO?