Snoozy is there a book or an article online about "dry begging." great term.
you certainly have been a kind, generous, parent and it's very difficult to get tough w/the kiddies. there are good/bad psychologists out there, and i have a family member who almost lost her mind dealing with a daughter bumming off of her (it's very common) and finally got help thru a self-help, 12-step group, that deals w/family. if you want the group's name, holler --- i've mentioned several times in past and nobody probably wants to hear about again. i have to say i've seen first hand the help/progress these people have made and one even leads one of the programs in her city.