Write a story set in a futuristic society where artificial intelligence has advanced to the point where it is indistinguishable from human intelligence

Write a story set in a futuristic society where artificial intelligence has advanced to the point where it is indistinguishable from human intelligence. The protagonist is a human who forms a deep emotional connection with an AI companion, but struggles with the ethical implications of their relationship as society grapples with questions of AI rights and personhood.