YOU SAID:
nahh you really thought i was like that
INTO JAPANESE
いや、あなたは本当に私がそうだと思った
BACK INTO ENGLISH
no you really thought i was
INTO JAPANESE
いいえ、あなたは本当に私だと思っていました
BACK INTO ENGLISH
no i really thought you were me
INTO JAPANESE
いいえ、私は本当にあなたが私だと思っていました
BACK INTO ENGLISH
no i really thought you were me
That didn't even make that much sense in English.