I have no problem, personally, with poly relationships. Because TG persues other relationships with other submissives I do not consider it cheating. Why? Because we discuss with each other first of it would be a good thing to both of us for him to continue with it. Normally, it has to be with someone that I can get along with.
Stables, as a whole, I am not sure I agree with because it just seems so impersonal. Kind of like a harem. Just something about it that leaves something to be desired.