...Leonard and I made a pact out of
respect to our FRIENDSHIP and to you...
The Big Bang Theory Season 4, Episode 6
What I was seeking was
some sort of FRIENDSHIP,
The Big Bang Theory Season 9, Episode 23
...because I hadn't offered any suggestions
for pursuing our FRIENDSHIP.
The Big Bang Theory Season 2, Episode 13
That's what makes
their FRIENDSHIP unlikely!
The Big Bang Theory Season 7, Episode 10
Fine. In the interest
of preserving our FRIENDSHIP...
The Big Bang Theory Season 5, Episode 17