On this week's 'Whitney' (9:30PM ET Thursday), the title character and her boyfriend discover that there are still key things they don't know about each other.

It starts off harmlessly enough -- Whitney (Whitney Cummings) quizzes Alex (Chris D'Elia) about his love of racquetball, a sport she didn't even know he played.

What else doesn't Whitney know about Alex? A fair amount, as it turns out.

Find out what Whitney discovers below.

The title character on 'Whitney' is known for her outspoken views; she's not exactly a shrinking violet and doesn't shy away from letting her opinions be known.

But in the exclusive video below, we hear from her boyfriend, Alex (Chris D'Elia), who knows his longtime girlfriend better than anyone else.

You could almost say that Alex's monologue from Thursday's episode of the NBC comedy is like hearing from Whitney herself.