Though Yukimura and Himuro went as far as to kiss for the experiment, they were soundly beaten by Chris and Suiu's oxytocin levels in their saliva. Panicked, Yukimura suggests that they conduct control experiments. However, in the midst of the Yukimura/Suiu pairing, Suiu's seductive manner ends up causing Yukimura to ogle her charms. Seeing that, Himuro runs another experiment with Yukimura, but ends up sulking. The two end up having a lover's quarrel. Yukimura's behavior causes Chris to look down at him coldly and say, "As a man, you are a failure."
You're the one who looked 
so very happy with Kanade!
!أنت من بدوت سعيدة جدا رفقة كانادي
Du warst doch mit Kanade
ein Herz und Seele!
¡Tú te veías muchísimo
más feliz con Kanade!
¡Tú parecías muchísimo
más feliz con Kanade!
Et moi, le taux
que tu as obtenu avec Kanade !
Eri tu che sembravi felicissima con Kanade!
Você que parecia toda feliz
com a Kanade!
Да ты сама вон как радостно
с Канадэ обнималась!