My late night friend, you are rarely alone here especially with me on the loose!
To give you my two cents I agree with KML and BF. Telling your daughter is not up to you, it is up to him. The Black Cloud advances. That they would have the nerve to grin and wave to you makes me mad.
That your H is cowardly makes me even madder.
But I do think it is time that your daughter knew. Better from him than from a stranger and since she doesn't appear to be clearing the field, it's time to give him the reality of his choices. And that includes the car. He pays lip service to wanting the OW to leave but there she is in her hooker boots smiling and waving at you. You and she are not getting the same tale.
He continues to live with her, consequences are that he can't hide it forever.
He wants to sell the car that belongs to you both, you get your share. Don't give him the opportunity to treat OW with the proceeds, or buy her another kayak.
In some ways, he was living on borrowed time. Maybe this reality check is what he needs.
