It is an unfortunate part of 'social gaming' - it brings with it the real life side of realitity issues - and not all of them good...
Of course, though I cannot understand everyones issue in playing the game - all I can recommend is:
- Be sure to remove any of those people from your list first (if they are on your list)
- Use the Map Feature to teleport to another server (since they are removed they cannot locate / follow you)
- Play along for a bit by yourself, but if you need assistance a) come here and ask for it as many here are willing to help or b) if in game and someone comes along just ask if they can assist you for just a minute - if you say 'any assistance in helping me get 'x' would be great' it sounds more mature than 'help me! help me!' - most players stop and help someone then...
I have seen the bad and wierd side... and if I really needed company I chose an ideal server higher in the list (E and above) where I find more mature players hang out.
Best of luck