All relationships are DIFFICULT,
The Big Bang Theory Season 7, Episode 5
although DIFFICULT at times,
The Big Bang Theory Season 12, Episode 22
Perhaps that's why she's DIFFICULT.
Game of Thrones Season 4, Episode 5
but you of all people
should know how DIFFICULT it is
The Big Bang Theory Season 5, Episode 20
Dividing our belongings is DIFFICULT.
The Big Bang Theory Season 10, Episode 10