Buglover, I think you have every right to be upset that he cancelled the date because of the girls. They are teenagers right? They do not have to do everything with you.
Maybe you can talk to him about this. They don't want to do everything with him all the time either I'm guessing, so you shouldn't have to include them in everything you and Mr. Buglover do either.
My daughter doesn't always go with me and my husband when we have plans and we almost never get invited to go anywhere with her and her boyfriend. I shouldn't say almost never. I can't think of a single time they asked if we'd be interested in going to the movies with them or anything else.
Couples need time alone time without the children. It re-energizes you to be with the children (without doing them bodily harm. kidding here! but you get the point.)
Miss Kitty, you might check with the police, but I doubt anything would come of it, as there were no witnesses (other than you), so the police couldn't prove a case of assault anyway.
The nerve of some people, I tell you. So many people have such a sense of entitlement don't they?