That annoying thorn in my side

I had a great day, I was planning on walking out happy and proud of myself. Instead I walked out crying. It happened again. A situation went down and I couldn't stop myself from getting emotional. Let me start at the beginning. After that awesome class, the English class begun and it had most of the same students. She hit play on the audio book and walked out. I thought she was returning soon, I had no idea where she went and this obnoxious kid Irwin starting roaming around the room distracting students. A student asked if I was going to wait until she came back and then I said something to Irwin. He said, "Was I asking you?" I had to address that. I said that he was being disrespectful and it was no way to address an adult. One of my 9th grade students said he was acting mean and he shouldn't do that. I agreed with the student and by this point everyone is laughing, and this laughter is the only thing I can hear. I just went back to my seat and went on the computer and ignored him. Psycho lady came back, I told her he was disrespectful to me and she said, "that's how he is to everyone." She didn't do anything. I was so mad at this point I went into Mr. C's class and spent the rest of the period there. I cried a little as I was surfing the web trying to get my mind off of what happened.