Below are the most prominent examples of storylines involving romance and "dolls" that may align with what you are looking for:
The narrative usually begins with the protagonist experiencing profound social isolation or inability to connect with people. The Introduction of the Object:
A Gothic workshop in modern-day Prague. Plot: Vladik is an apprentice to a reclusive dollmaker. The master creates a "living doll" via a forbidden AI consciousness. Vladik is tasked with teaching the doll to be human. Romantic storyline: The doll learns love by watching Vladik sleep, arranging his tools, and eventually sacrificing her AI core to save him from a fire. The tragedy is that Vladik finally says "I love you" to an empty shell of ceramic and wires.