This is the fourth part of the 21st Century Breakdown story, written in Gloria's point of view.
At first, its a reflection of how her life used to be, how happy she was, and how much time has changed her life.
Then her emotions take hold of her retrospect, and she's angry with herself, admitting to her involvement with drugs and how she's really just a fuck up and not the person everyone thinks she is.
She does love Christian, but she doesn't think she can be in love when she's so messed up.
Her mind takes hold again, and she goes back into retrospect, mourning the loss of her past.