It’s something you said.
너가 한 말이 문제야.

Careless with words
말조심을 안하다

Say something ~ shouldn’t
하지 말아야 할 말을 하다 (말실수를 하다)

Be careful what you said.
말을 조심해라.


I think she is still angry with me but I don’t know what I did wrong.
그녀가 아직도 나한테 화 나 있는 것 같은데 내가 뭘 잘못했는지 모르겠어.

Maybe it’s something you said.
Could it be something you said?
너가 무슨 말을 잘못 한 거 아니야?

It could be.
그럴 수도 있지.

Yeah you know, you tend to be a little careless with your words.
맞아 너가 말조심을 좀 안하는 편이잖아.

You must have said something you shouldn’t have, again.
너가 또 무슨 말실수를 했나보지.