I actually thought the woman did well up to that point.
She showed there were indeed many gods and lords. But only one true God and one true Lord.
You probably would have done better if you had showed her the holy spirit scripture earlier.
As it is, she showed that she could answer your questions. However once JWs decide you are there to prove them wrong she and others will flee.
You were right of course you are not an apostate, but as far as they are concerned, you are tarred with the same brush for being anti 'Jehovah's organisation.'