
...because it's
just the kind of BOYFRIEND I am.
The Big Bang Theory Season 4, Episode 9

I'm excited to work
with my BOYFRIEND.
The Big Bang Theory Season 5, Episode 16

With a posse, a BOYFRIEND
The Big Bang Theory Season 5, Episode 17

What's the thanks I get for turning
Leonard into quality BOYFRIEND material?
The Big Bang Theory Season 4, Episode 19

Amy, if you want to be my girlfriend
again, I really want to be your BOYFRIEND.
The Big Bang Theory Season 9, Episode 10