Just watched the trailer. Looks interesting. Anywhere I can watch it for free?
With the exception of a K9 cop (which I doubt the OP was thinking of), I still think the terms "partner" and "best friend" if applied to pets has a lonely/empty connotation.
On the flipside if you use logic and know that pet and best friend (man's best friend) are definite references to animals would it make any sense to then also want to see a partner? What does that even mean? Business partner, gay lover, police partner, attornies, partner in crime, lab partner etc. etc. etc.
There is a show yourselves thread that people use regularly to show of significant others that existed well before this one. If you take the title at face value then that would mean the op want's to see your pet, your best friend, and your partner (however many that may be). Wouldn't that be a lot more strange than considering option A?
P.S. You can watch in on Netflix instant for free if you're a member.