YOU SAID:
We started to dance in my house when she came.
INTO JAPANESE
彼女が来た時、彼はちょうど家を出ようとしていた。
BACK INTO ENGLISH
He was going to leave the house when she came.
INTO JAPANESE
彼女が来た時、彼はちょうど家を出ようとしていた。
BACK INTO ENGLISH
He was going to leave the house when she came.
That didn't even make that much sense in English.