The actor plays Nick in the Fox sitcom, and stated that fans have responded positively to his character's romantic tension with Deschanel's Jess.
Johnson explained that he had asked the show's writers about more scenes with the pair, but they had expressed concerns over fans getting tired of a 'will they, won't they?' storyline.
However, he said that scripts have now focused on more scenes between the couple as per fans' requests.
"Personally, I love the Nick-Jess stuff as an actor," he told The Hollywood Reporter.
"At the Paley Festival, every other question from the crowd was, 'How come there's not more of Nick and Jess?' The next script we got was, 'OK, these characters are back to being in love with each other'.
"Part of me thinks that the people spoke, and the writers listened. In my little conspiracy theory world, that's what happened."
Speaking about his character, he added: "I feel like Nick, at the beginning, was very solid and grumpy and kept everybody together.
"And now when I watch episodes, I'm thinking, 'This guy is an idiot, he's not keeping anyone together'. But I think it's more fun this way."
New Girl was recently renewed for a second season by Fox.
The show will air its first season finale on May 8, 2012.
Jake Johnson will soon appear in romantic comedy Safety Not Guaranteed opposite Aubrey Plaza.
Watch a promo for the next episode of New Girl below: