I recommend "Picking Up a Big-bellied Blackie" to you. This novel tells the story of the female protagonist, Lang Yue, picking up an autistic, socially-disordered, and extremely clingy little mute. Moreover, the male protagonist, who is a genius designer, never leaves her side and only treats her well. It's a cute plot. There are no elements of abuse in the book, only sweet pampering. The male protagonist has always loved and cared for the female protagonist, which completely meets your needs. I hope you like this fairy's recommendation. Muah~