She doesn't want to let go, precisely knowing that the house is empty at the moment and a bit more of time together won't hurt. Not completely empty (Helène is there), but it is as if it were.

And she does wonder if she'll see him again. She does hope it will happen.

In the meanwhile...

"Maybe I could give you a small present to sweeten that sorrow" she finally says "But first, I need you to close your eyes."