My DF and I have also been living together for a about 2 years, but we felt the same way we didn't want to get ready together before our wedding.
I stayed at Coronado Springs with my parents (my sister and her husband were next door and my other bridesmaid and her family were a few doors down).
DF stayed in 'our room' his mom and aunt came to him to get ready the morning of.
Then the limo pick then up at POFQ drove to Coronado to the guys that where with us, then came back to get me and my girls.
The biggest challange we had was getting my dad's tux and my overnight bag back after the wedding. I kills me how they let you pick up the tux days and even a week before the event, but they want it back the morning after.
What we ended up doing was this, we all went to our own rooms to change and clean up then DF, oh I mean now DH, and I met my parents at Downtown Disney and did the exchange of "stuff".
Our first thoughts were to go to EPCOT for EMH but after the long day, it was nice to get cleaned up and do some shopping then head back to our room. We actually went to sleep pretty early, is that a sign of getting old. LOL