my dear capricorn u aren’t exactly overanalizing ..we are indeed very smart, but this is a social/emotional inteligence that guids us to pass our message in a dedicated way to the listener … and is true that seeing the same message spread to different persons in different ways may seem as trying to spin things our way .. but if u’d just look well enough u’ll understand it’s just a matter of maximising the impact of the message that’s all (and we are very good at that) …to explain things in the interlocutors own language
on the other hand, if u’ll feel temped to just proove your gf that she will not get away with it, no matter what is she saying, u’ll get yourself a beautiful power game, that will end up badly, been there, done that 😉
…what i’m trying to say is to analize not the way the message is spread but the message itself …if it’s correct then agree with it if not then defend your point …we always love someone who can give us a logical/smart feedback