Nick and Jess: OCEAN Compatibility Profile

Jess is a quirky, sunny schoolteacher with her life more or less together. Nick is a cynical, disorganized bartender who avoids his own mail. New Girl turns the mismatch into its central romance, and the 30-facet framework confirms the gaps are large while pointing at the one trait of Jess's that carries the whole thing.
The gaps are wide
Nick and Jess diverge on most of the visible traits. Jess's Openness is a high 85 against Nick's grounded 48, and her Extraversion is a bright 89 against his more withdrawn 42, so she is the enthusiastic optimist to his grumbling homebody. The starkest split is Conscientiousness, where Jess's 70 meets Nick's very low 19, the organized planner living with a man whose apartment and finances are a permanent disaster. These are real MATCH-facet gaps, and the show never hides that Nick and Jess are fundamentally different kinds of people.
Jess's warmth is the bridge
What makes it work is Jess's Agreeableness at 90, a near-ceiling warmth that reaches Nick where his cynicism would push most people away. Nick is not cold, at a middling 55, but he is guarded and pessimistic, and Jess's relentless warmth and optimism are exactly what draw him out and soften his gloom rather than colliding with it. Her high Cooperation at 75 against his 54 also means she bends toward him in conflict, and both keep their Anger moderate, so their many squabbles stay squabbles instead of escalating. Jess is warm enough and flexible enough to make Nick's grumpiness a texture rather than a wall.
The gap that stays a gap
The Conscientiousness difference is the one that does not resolve, only gets managed. Jess wants a functioning, planned life and Nick actively resists one, so she ends up carrying more of the household structure, which is the standing tension a 70-versus-19 gap always produces. It is a genuine friction, and the show is right to keep returning to it, but it sits inside a relationship where the warmth and the workable conflict style are strong enough to hold it, so it reads as an ongoing negotiation and not a dealbreaker. A gap like this one does not have to close for the couple to work; it just has to stay survivable.
Nick and Jess are another case of one partner's warmth carrying a wide difference. Their gaps on Openness and Extraversion and Conscientiousness are all real, and Jess's near-maximum Agreeableness is the trait that turns Nick's cynicism into something she can reach instead of something that repels her. These profiles came from the same 30-facet OCEAN personality test you and a partner can take in about 15 minutes each, with domain results free, and a compatibility report can show you whether one partner's warmth is high enough to bridge the gaps the two of you actually have.