It must be said that the way Sol spoke the words out loud was something Gin had been accustomed to. Rather than feeling offended or hurt, he felt relieved. Sol wasn't treating him differently even after transforming back to his human form.
He indeed would prefer if Sol would treat him just the same. Truth be told, that kind of speaking was actually, slightly adorable.
It was definitely something Gin wouldn't dare speak about, however.
So Gin stayed still, silent as he let out a sigh. His hand stayed in its position around Sol's waist, seemingly unbothered by the latter's complaints. As such, it was as if he had read Sol's mind and wanted to tell him that he was wrong. That the way he desired and felt to touch Sol wasn't as shallow as Sol's mind thought them to be.
But of course, he wouldn't tell that to Sol directly himself.
That was something Sol had to discover on his own rather than spoken by Gin.