
Oh, right. Uh, GIRLFRIEND.
The Big Bang Theory Season 9, Episode 8

Honest to God. Ahem.
Leonard, tell her I have a GIRLFRIEND.
The Big Bang Theory Season 3, Episode 11

at Valentine's dinner
with your GIRLFRIEND.
The Big Bang Theory Season 7, Episode 15

You never thought to go with
"Sheldon has a GIRLFRIEND"?
The Big Bang Theory Season 4, Episode 1

My GIRLFRIEND, Bernadette.
The Big Bang Theory Season 3, Episode 10