"When we were doing the first divergent movie, we really connected, and we became sort of instant siblings," kenang Shailene Woodley.

Ia menceritakan bahwa selama proses syuting tersebut, Elgort sering berkunjung ke rumahnya untuk memasak bersama dan menghabiskan waktu berjam-jam untuk mengobrol setelah selesai bekerja.

"The dynamic between us is always very sweet, and it was very supportive, and he would come over to my house, and we would cook and just talk for hours after work," ucap Shailene Woodley.

Woodley menambahkan bahwa hubungan erat dan kasih sayang tulus di antara mereka di dunia nyata berhasil memperkuat chemistry romantis karakter Hazel dan Gus saat mereka bersatu kembali untuk membintangi film The Fault in Our Stars pada tahun 2014.

"When I heard he was auditioning for Fault in Our Stars.

I was like 'Oh that's sweet, but like obviously it's never gonna happen because he's my brother in Divergent, like there's no world where [that happens] … And then he was cast," ungkap Shailene Woodley.

Kerja sama dalam film romantis yang diangkat dari novel laris karya John Green tersebut mengharuskan mereka melakukan beberapa adegan romantis.

"You know, he's kind of the only person on Earth who could've played Gus," jelas Shailene Woodley.

Ia menilai bahwa kedekatan emosional tanpa sekat di antara mereka justru menjadi fondasi utama yang membuat penggambaran cinta tanpa syarat di layar kaca terasa begitu murni.

"I think actually what made our relationship in that movie as tender as it was and as truly like unconditionally loving as it was [because] Ansel and I do genuinely love one another," terang Shailene Woodley.