Emily’s Reviews > Go Set a Watchman > Status Update

"She rose, smiled goodbye, and said she would be coming back soon. She made her way to the sidewalk. Two solid hours and I didn't know where I was. I am so tired." Huh? Is there any particular reason why Miss Lee not only switched from third-person to first-person but also from past tense to present tense in a single paragraph? Does anyone understand this?