Jessie J recounts the emotional rollercoaster of Love struggles she has encountered on the new record “Not My Ex”. The British singer vividly sings about her past pain while experiencing a new love that has entered her life. This single is the follow-up of the previously released song “Think About That” from the R.O.S.E. EP. Each letter is an acronym for realizations, obsessions, sex, & empowerment which are all things that she went through during the process of recording the project.