Do you think its okay if I stalk my crush?
Is there a reason you're stalking your crush?
Yes, I want to know everything about her
Stalking someone is a violation of their privacy. It is creepy and she wouldn't want to talk to you anymore.
I don't care if she wants to speak to me or not. I think the best thing to do would be to haunt her friend and make her see my side of things.
Her friend is probably going to feel the same way and will tell the girl you're stalking that you're acting creepy. If you really want to get to know your crush then try actually talking to her. Maybe she would agree to going out on a date?