Translation of "그랬더니…" in English

그랬더니…

And it turns out-- actually, do you have the highlighter?

‎그랬더니, 짠!

And then, bang!

그랬더니 말하더군요. '우리는 지극히 정상이군요'

and he's like: "We're, normal!"

그랬더니 "제가 가입한 남자들 모임을 당신이 조직했어요" 하더군요.

And he goes, "You formed a men's group that I joined,