What a mess Queen B! I would have no idea what to do. When I was about your daughter's age, I had a friend who started dated a guy in his mid-30s. It creeped everyone out. She met him at the restaurant where she waited tables. From what I remember about how we all felt about Mr. Creepy Old Man, it might be a good idea to host a backyard party or something. Tell your daughter she can invite her friends over, have a cook out, campfire, whatever. Hopefully seeing how all her friends react to the older boyfriend will persuade her to reexamine her dating options. Of course, if she has friends who aren't 18 yet, this could be problematic. You wouldn't want one of her friends to meet a friend of the older boyfriend and tell her parents she met him at your house.