For some reason, I still have a bit of doubt. Like maybe I don't want to get rid of it. But I know I need to. So should I do it?
If it's over why bother wasting anymore time on it?
To get over someone is hard, and I have, and so have many others, been there and has stumbled across this question, puzzled and confused in thinking "am I doing the right thing?"
I, personally, think you are doing a good thing.
You need to move on, and if you don't want her anymore in your life (and I assume you don't), then go ahead and tell her that there is no more communication between you and her.
That said, I would go as far as not INCLUDING Myspace as an only way to communicate, if what you are trying to achieve is life without her meddling in your path.
It is this, I would tell her: "I'm over you now, and I think it is best that you and i should never talk".
Short, simple, and gets the point across. No point in being all "Oh hi, we cant talk anymore (long and drawn out, by that time you will probably contradict yourself a hundred times)".
But then again, even posting it might lead her to think otherwise.
Up to you. Post a message saying you dont want to ever communicate, or just ignore her completely. -R'
tell her you are not going to communicate anymore
No. I am. ...Right?
it'll seem like you're NOT letting go, which you aren't.