Board Thread:Questions and Answers/@comment-7708862-20130402005255/@comment-1351982-20130501234244

Gin was a sociopath. Yes, he did care deeply for Rangiku, but we don't know if it was a neediness and his love of Rangiku was more of an ideal than actually affection, or if it was actual love. Regardless, Gin had severe mental issues (perhaps doing with his street rat childhood), and to be honest I don't think Gin had the mental capacity to differentiate between good and evil. He wasn't good but he wasn't really evil either, he was just Gin.