So if sex is not acceptable with a sleeping nun, why do you choose to "Go into the room" and why do you go to her every night, because sex does not happen on the first night, but on the 4th.
She does not know the truth, but someday she will know it. The fact is that at this very moment she would have died, but at another moment, when she would feel safe, she would not have taken such a step.
Have you watched Game of Thrones? They killed the main characters and it looked strange, but only when the series came out in its entirety, it looked brilliant. Do not judge the game by one moment.