Based on the conversation on the show, the two of them have a sleepover at Chika's fancy house. Yumiko's happy to see Chika enjoy the dinner she cooked. Then for some reason, they end up taking a bath together. How did it come to this?!
So I was so jealous and felt so pathetic...
...لذلك غرتُ منها وشعرت بالشّفقة على نفسي
Darum war ich neidisch und
habe mich erbärmlich gefühlt.
-Me sentía tan frustrada y patética…
-Ya veo.
-Estaba muy celosa y me sentía patética…
-Lo sé.
Ça m’a frustrée.
Je me suis sentie nulle !
Ero invidiosa 
e mi sono sentita così patetica...
Então eu fiquei com inveja
e me senti tão patética...
Мне так обидно, и так стыдно за себя...