Analyzing Protagonist's Feelings Towards Past

Read the following excerpt from a novel:

"As she stepped into the room, a wave of nostalgia washed over her. The faded wallpaper and the dust-covered furniture brought back memories of laughter and childhood dreams, echoing the innocence of days gone by. Yet, underneath the surface of that familiarity lurked the ghost of her past—a whisper of regrets and unfulfilled promises that threatened to shatter her moment of peace."

Based on this excerpt, what is the author's point of view regarding the protagonist's feelings about her past?