Solomon gave a rambling explanation of where he had been and what he had done. Several commentaries state that this is one of the hardest verses in the Bible to translate. When I read that, I knew exactly what it was. He had left mad and was going places that he knew. But he wasn’t really paying attention to where he was going. He was mad and frustrated. by quoting the queens and the concubines he is showing that he didn’t go there for sex, and that he was thinking about her. If a guy has a smooth story about what he did when he was mad or upset, it probably isn’t true. She could tell he was being honest because his story wasn’t smooth. She could see that he wanted to make up and be back together with her.
Walking off together with him was telling him that she wanted to be back together. Notice another thing. He did all the talking. In most of the story, she is either talking, or telling us her thoughts or she is telling us what he said. From the time he arrived until they walked off together she didn’t say anything. He used all the words and she used her action to communicate. Big reversal of what had been normal for them.