I must say that it sounds like you 3 must have a lot of fun together.
What a great relationship/friendship!
I definitely think you should talk to her about it! Sounds like a win-win to me. It's inconvenient to move, of course, but it's a matter of whether or not it'll be worth it when you get to your new place, and from the sounds of it you think it will be.
Best of luck to you!