Well, the main thing would be to determine the main idea.. this will likely lead you to discovering the theme.
The food drive is just two weeks away, and I am writing to ask for your help.
She and Trofimov get into an argument; Trofimov accuses her of not being able to face the truth, and she accuses him of being unusual for never having fallen in love. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.