In order to prove to Yuri that they are actually a married couple, Loid and Yor are supposed to kiss. Loid is willing to get this done immediately for the sake of Operation Strix, but Yor can't do this sober, so she ends up downing a bunch of wine and gets drunk.  Yuri sees his sister this way, also gets drunk, and is unable to make rational decisions anymore...
Hey, come on. Don't tell me you 
feel guilty for doubting her.
ما بالك؟ لا تقل لي أنّك تشعر
.بالذّنب لأنّك شككت في أمرها
Hey, sag bloß,
du fühlst dich jetzt schuldig?
¿Qué? ¿Ahora te sientes culpable
por interrogarla?
¿Qué pasa? ¿Ahora te sientes culpable
por interrogarla?
Attends, tu culpabilises
d’avoir douté d’elle ?
Ehi, che ti prende? Non dirmi che 
ti senti in colpa per aver dubitato di lei!
Qual é! Não diga que está se
sentindo culpado por duvidar dela.
Эй, ты это чего?
Совесть из-за подозрений мучает?