YOU SAID:

SO i found out that you are ugly

INTO JAPANESE

それで、あなたが醜いことが分かりました

BACK INTO ENGLISH

So I found out you're ugly

INTO JAPANESE

それで君が醜いことが分かった

BACK INTO ENGLISH

That's how I found out you were ugly

INTO JAPANESE

それで君が醜いことに気づいた

BACK INTO ENGLISH

That's when I realized you were ugly

INTO JAPANESE

そのとき私はあなたが醜いことに気づきました

BACK INTO ENGLISH

That's when I realized you were ugly