Songfacts®:

• Demi Lovato sings on this flirty, sexy jam about stepping out of a platonic friendship and crossing the boundaries with her buddy:
  
  Your body's looking good tonight
  I'm thinking we should cross the line
  Let's ruin the friendship, let's ruin the friendship
  
  Lovato explained during a private album launch event:
  
  "This is a song about wanting to get out of the friend zone with someone you have a close friendship with. This song is sexy, fun and a little scandalous. A lot of us have experienced this at some point in our lives, whether it's a close colleague you want to hook up with or a best friend you grew up with. This song is about wanting to take that next step in unchartered territories."
• "Ruin the Friendship" and "Only Forever" are about the same person, and it's not Demi's ex, Wilmer Valderrama. Many Lovatics believe the subject of the song is Nick Jonas. The pair are close friends and they did date for a short while, but Jonas called it off because he said their friendship was more important. One line in this song is "Put down your cigar and pick me up," and Nick is known to enjoy smoking cigars.
• Lovato told MTV News that she had some misgivings about Tell Me You Love Me's stark honesty, as she worried such songs as this one may implicate someone fans know well.
  
  "Sometimes you put out music that you just feel like everyone is going to know who it's about," she said. "Headlines are going to come out of it, and it's like, when you write a song, you're just being vulnerable, and you're just writing about something that's inspiring you, so all the baggage that comes with it is what I'm kind of nervous about."