Because she doesn't actually want to go,
she's just doing it to make him HAPPY.
The Big Bang Theory Season 10, Episode 17
who's HAPPY to be there
when she needs someone to talk to.
The Big Bang Theory Season 9, Episode 18
And yes,
I'm HAPPY to keep Sheldon company.
The Big Bang Theory Season 10, Episode 24
I don't know.
The man on the box looks so HAPPY.
The Big Bang Theory Season 1, Episode 16
HOWARD:
Fine, I'll stay. You HAPPY, crazy lady?
The Big Bang Theory Season 2, Episode 19