
See, Penny is my fiancée.
The Big Bang Theory Season 8, Episode 7

Did you install a camera
to spy on your fiancée?
The Big Bang Theory Season 12, Episode 12

...there is a gentleman caller
bringing flowers to your fiancée as we speak.
The Big Bang Theory Season 8, Episode 7

I know that if I had a wife or a fiancée...
The Big Bang Theory Season 8, Episode 4

Hey, where's your fiancée?
The Big Bang Theory Season 10, Episode 22