yes they do exist! i'd recommend learning how to set boundaries with people. it takes practice but i say 'i'm no human doormat.' neither are you. if ppl hear you don't say 'no, that's not possible for me today' eventually they'll move on to another such person. another thought...perhaps you're choosing the wrong 'friends'. a healthy friendship is give and take like any other relationship.
i'm originally from VA and there are some very decent ppl there like anywhere else. hopefully my reply will assist you to find real friends. so sorry you're having a rough time of it but if you learn to say 'no' i hope your situation improves and you'll have true friends.
here's a great article you may find helpful re boundary setting- http://psychcentral.com/lib/2011/10-...er-boundaries/