what are some of the reasons why rose is so upset at troy?

Rose is upset at Troy because he has committed his brother to a mental institution in order to get his government check; she's upset because he is having an affair; she's upset because he's ignoring his family; she's upset he's not worried how Alberta will be buried. I think she has good reason to be upset! But wait! She might be just a little upset that Alberta has just given birth to a baby.