Stalking Cat is open to the idea of a relationship, especially with a cat girl by far, which may exist but they haven't met them. It requires a very deep bond, and it's difficult to deny that bond to a given animal, so I imagine it might be difficult to sustain a non cat-cat relationship.

There's also the issue of not having enough time to sustain a relationship, as much time is spent pursuing body modifications.

Those with Autism Spectrum Disorders can logically break down human interaction, but are woefully unable to replicate it in the moment. This can also be applied to interspecies interactions.