This is the theory, though.
Your theory is nice, but wrong.
Wildrover, your girlfirend/future wife doesn't need a permit for living in Poland.
Girlfriends have no rights, unless children (belonging to both parents) are involved.
As for wives - yes, they have the right of residence, but still need to apply for an entry visa. They also need a residence permit after the visa expires.
Nationality of the EU citizen doesn't matter one bit - they are all treated equally in the country in question. However - to take up EU treaty rights, there's a general obligation for the EU citizen to have valid residency in the country in which they wish to reside - it's not enough to say "im living there now".