last week

Last week I went to the theatre.I have a very good seat.The play was very interesting.I did not enjoy it.A young man and a yuang woman were sitting behind me.They were talking loudly.I got very angry.I could not hear the actors.I turned round.I looked at the man and the woman angrily.They did not pay any attention.In the end ,I could not bear it .I turned round again."I can not hear a word! "I said angrily.
"It's none of your business."the young man said rudely."This is a private conversation!"