My girlfriend acts like a little girl.
She is 20, almost 21, and we have been together for over four years. She is likes to talk about fairies and princesses and has this intense love for all things "cute and chubby" as she puts it, meaning adorably pudgy dogs and bunnies and the like. She loves to tell bedtime stories before we go to sleep, which usually either center around fairies, princesses, or horses. She is obsessed with horses, but without a real desire to own one.
It's the cutest thing in the world. I can't wait for us to get married in a little over a week. I hope she never grows up.