only you know and I know

edna, darling. there's something I need to tell you.
what's that, stanley?
well, edna. it's 20 years now, we've been together.
yes, stanley. a wonderful 20 years.
but I have to tell you. it's time for me to leave.
what!? what do you mean?
I mean, I've been recalled.
what?
there's a new model, and I'm replaced.
a new. . .
you'll like the new one. he's much better.
new one?
yes, the next android, model 51.
but. . . you're. . . human! I mean. . .
no, actually I'm not. but then, neither are you.
what? of course I am!
I told them, either I get a new model, or I'm gone.
but how. . .
so, model 51 has been shipped. and I'm out of here.
but. . .
they told me I'll get the update of you, edna v.78.
what version am I?
oh, you're a 72 or something. can't even get parts.
parts? why didn't I know this?
no self-awareness in the 72. sucks, doesn't it.
so you're trading me in. I can't believe it.
yep. for a younger model.
men! you're all alike.
well, we call ourselves drabhoovies on arcturus.
and you call women. . .?
oh. bitches. same as here.
shoulda known.