
He's battled INTIMACY issues
his whole life.
The Big Bang Theory Season 9, Episode 23

...that a disinterested onlooker
might mistake for INTIMACY.
The Big Bang Theory Season 6, Episode 1

...that having sex is our way of making up
for INTIMACY we didn't get as children.
The Big Bang Theory Season 2, Episode 15

details of physical INTIMACY,
bathroom habits...
The Big Bang Theory Season 10, Episode 16

Just extending the INTIMACY.
The Big Bang Theory Season 1, Episode 5