Rabbit's explanation just hinted to The Spine about what this was about. And really, he was thrilled that his brother had found someone that wasn't an appliance to shower with affection. It would be good for the copper bot. And really when Rabbit admitted it, it was just sweet enough (Rabbit-wise) to earn a warm smile.

"Yeah? Well then I'm even happier to meet her, and she's welcome around whenever she'd like." Because she is adorable and seems polite, and well Rabbit likes her and that in itself is good enough for him!