The song "Somebody That I Used to Know (4FRNT Remix)" by Gotye ft. Kimbra explores the emotions and aftermath of a failed relationship. The lyrics delve into feelings of nostalgia, longing, and resentment.

The song opens with Gotye reminiscing about the past, reflecting on moments when they were together and when his partner expressed great happiness. However, despite the initial belief that they were right for each other, he experienced loneliness in their company, suggesting that the relationship was not as fulfilling as it appeared. Gotye describes the lingering ache of lost love and the addictiveness of dwelling in a specific kind of sadness.

The chorus reveals the bitterness and hurt caused by the breakup. Gotye expresses his frustration at being abruptly cut off and treated as if their relationship never mattered. He explains that he doesn't need their love anymore, but being treated like a stranger by someone he once shared a deep connection with feels rough and painful.

In the following verse, Kimbra's perspective is introduced. She reflects on the times when she was deceived and made to believe that she was to blame for their problems. However, she doesn't want to continue living in that way, overanalyzing every word spoken. She mentions that Gotye claimed he could move on from their past, but she doubts his ability to detach from someone he used to know.

The chorus repeats, emphasizing the hurtful actions taken by the former partner. They stoop low by completely cutting off Gotye, having their friends collect their possessions, and changing their contact information. Despite this, Gotye realizes that he doesn't need any of that negativity in his life, and the person who was once so important to him has become just a distant memory.

The song ends with repetition of the phrase "Somebody that I used to know," emphasizing the theme of loss and the eventual transformation of an intimate connection into a distant memory.

Overall, "Somebody That I Used to Know (4FRNT Remix)" depicts the complicated emotions that arise after a failed relationship, exploring themes of longing, hurt, and detachment. It showcases the pain of being treated as a stranger by someone who was once so deeply entwined in one's life.