Do you have a date lined up for Friday night?
I didn't think so.
I'm being a little facetious because it seems you are jumping the gun a little. Unless or until he starts talking about "when we're back together" I think you can safely go on the assumption that he knows the marriage is over.
You can probably help by showing your genuine happiness that he is finally committing to recovery, telling him how pleased you are and how much of a gift he is giving himself and your daughter, but being firm that your decision has been made.