LONELY Russian cosmonaut
who is expert at physics
The Big Bang Theory Season 12, Episode 5
The inevitable--
he was LONELY and vulnerable
The Big Bang Theory Season 5, Episode 3
Hello, I wanna talk about
how LONELY I am, too.
The Big Bang Theory Season 9, Episode 15
The LONELY guy
and the two happy couples?
The Big Bang Theory Season 4, Episode 22
I was LONELY, and I thought
The Big Bang Theory Season 12, Episode 4