왜 이러는 건데

why are you acting like this?

→ 왜
phrase Rare #29,436
why are you acting like this? Often expresses frustration or disbelief. The ending makes the question sound emphatic and informal.
KO: 너 오늘 왜 이러는 건데?
EN: Why are you acting like this today?

왜 이러는 건데, 진짜?

Why are you acting like this, seriously?

— Time to Hunt (2020)

왜 이러는 건데?

Why are you doing this?

— 에브리씽 에브리웨어 올 앳 원스 (2022)

그 얘기가 아니잖아 왜 이러는 건데?

That's not what I'm talking about. Why are you doing this?

— 로우 (2017)

아, 너 나 한테 계속 왜 이러는 건데, 어?

Why do you keep doing this to me, huh?

— Night in Paradise (2020)