I am very happy for you, good luck!
My suggestion (and I am DUMB) is simply do not introduce her to anyone, act as though you forgot! If she wants to step up and tell folks who she is, you can just say, "Oh Yeah, OOPS"! After about three or four times she will introduce herself right away, or you will be single again, WooHoo!
How 'bout "this is some chick I slept with a couple of times and she won't go home" or would that be to long of an intro?
She's the best thing that ever happend to me.
DUDE !!!
That's awesome !! Congrats !!!
How 'bout "this is some chick I slept with a couple of times and she won't go home" or would that be to long of an intro?
Maybe a bit long....
Might want to save that intro just for the clergy.

Seriously..
Fiance? Never gave it much thought when I was engaged.
I refer to my gf as, "my woman"
The joint in my checking account!