I had read the 5 love languages when I was married and it was a good book, but although I had the tools not all things could be fixed with knowledge. After my divorce, I picked up this book, and it is very different than the married edition. It was great, there were so many different perspectives for singles that really helped. What I was surprised about, was how this book would help me not with my own romantic relationships, but how I helped me build my relationship with my daughter who is 14. She is struggling to feel loved and I was trying to show her love the way I knew how, but it was not talking to her. Understanding how people love languages had been shaped by their relationships with their parents, helped me understand what I needed to do to fix my relationship with my daughter and help her understand how much I loved her in a way she could understand.
I highly recommend this book. If you are single, and even if you are not in a romantic relationship currently, it will help in many different relationships in your life.