...Thames is my biological mother's maiden name.

[ He raises a paw and waves it dismissively which, while awkward as a cat, gets the point across. ]

But that's not important.

[ At least not right now, when nobody has tried to target him despite him advertising who he was in a way Hunters would find irresistible. ]

What's important is why you thought a Familiar bond would make someone think you were cheating.