YOU SAID:

I was going to sleep with you but you slept with someone else instead

INTO JAPANESE

私はあなたと寝るつもりだったが、代わりにあなたは他の誰かと寝た

BACK INTO ENGLISH

I was going to sleep with you, but instead you slept with someone else.

INTO JAPANESE

君と寝るつもりだったが代わりに誰かと寝た

BACK INTO ENGLISH

I was gonna sleep with you, but instead, I slept with someone.

INTO JAPANESE

君と寝るつもりだったでも誰かと寝たんだ

BACK INTO ENGLISH

I was gonna sleep with you, but I slept with someone.

INTO JAPANESE

君と寝るつもりだったでも誰かと寝た

BACK INTO ENGLISH

I was gonna sleep with you, but I slept with someone.