I have this little problem who is in her mid 20's and is freaking me out!

I am a private person as a rule and very few people know much about me, I don't make friends with neighbours or work mates because it usually leads to disasterous outcomes.
A few weeks ago my neigbour gave my daughter an invitation to her daughters birthday party, since Grace had seen it before me she was very excited and eager to attend so I alowed her to go. It was a typical innocent childs birthday party with family and I assumed to be her closest friend. I walked my daughter over with no intentions of staying but straight away got caught in a converstaion and a glass of wine was thrust in my hand. I thought they were very nice but I had very little incommon with them so really had not much to say. I stayed for a hour or so and excused myself and went home. The next day the neighbour arived with a gift for my son, it was around the time of his birthday, I invited her in for coffee as I couldn't take the gift and send her on her way, the problem is that she stayed for around 5 hours, I sighed a huge sigh of relief when it was time to go and pick up my daughter from school. I thought this would be a one off thing but how wrong I was!
Have you seen the film Single White Female? well this situtation is quickly takeing on many resemblences to that film.
She comes over every day, I have never once invited her and she is cunning and as sly as a fox, she will, as soon as I open the door, lean her daughter who is usally on her hip towards me so the daughter reaches for me, this is her way to gain entry. The first couple of days I offered coffee, I have now stopped this but she continues to pop in and I hate ANYONE popping in, as I said I am a very private person.
From the first days she started comeing over she asked my opinion and advice on everything and anything and seemed way to over keen to get my approval, she constanly compliments me, one of the first days she complimented my hair and asked what colour it was, the next day she was back on my doorstep with my exact shade of blue black hair.. a few days later she complimented me on my boots and asked where I had gotten them, a few hours later she was back over with a big shoe box to show me the exact same boots as mine. She asked what brand of make up and colour of lipstick I wore and low and behold, you guessed it, she went and ordered the same makeup. When she asked me where I got my sun glasses I had by then had enough and told her very nicely that she was her own person and didn't need to dress think and act like me.. She fucking cried didnt she! I am not kidding, she cried and said " I'm sorry Kylie it's just that you are so stylish and I have never had a friend like you" THIS FREAKED ME OUT MAJOURLY! I am no diffrent from any other Tom Dick or Harriette, I do have my own taste in things but I in no way think I am any kind of fashion guru and other than that I have been quite stand offish with her and she knows nothing about me so I cant understand why she is like this. A few days ago she saw me drive in after work and said "you were late this morning wern't you Kylie" I replied "I beg your pardon?" she told me that she woke up early and was standing on the front varandah to wave me off.. She must be frigging mad, I leave for work at 3am, what kind of prson wakes up at that time to wave off a neighbour?. I told her straight that I was getting uncomfortable with her constantly watching me and repeated myself for the gazzilionth time that I loved my privacy, I told her that although I thought that she was a lovely girl that I would prefer to keep our chit chat over the fence as I am often tired and not in the best mood after work and really prefered to be left alone. She appologised and cried again, I gave her a hug and told her that I had no bad feelings that I was just not the kind of friend she obviously wanted me to be.
I, just an hour or so ago heard someone walking up the front steps, I listened for a knock but there was nothing, a easy 5 minutes later I walked into the family room and looked over toward the window and there she was, just standing there, she didn't knock, she was just standing there with her daughter perched on her hip faceing my front door, I opened the door and suprised her, she casually said "oh good you are home I thought I would pop in for a cuppa" FOR BLOODY CRYING OUT LOUD!! what do I have to do or say to get through to her? I simply replied "not right now, I am tired" she appologised AGAIN and walked off. She realised from day one that I was a very upfront and to the point person, I don't want to hurt her feelings but how else can I get through to her?

Edit- The neigbour came to my door step crying at 2.45 pm, I pick up my daughter from school at 3 pm.. She was crying, I mean really hysterical, I couldnt just send her home not when she seemed so distraught. I told her that I was just about to go get Grace and would be home in 30 minutes as I was walking down the stairs she grabbed my arm and said "why do you hate me?" I was O.O! I said I dont hate you , I have to get Grace, I will be home before you know it and we can talk about what it is that has you so upset. Instead of letting me go and get Gracie she walked along beside me sobbing her little heart out, this made me uncomfortable, I dont want to know her personal life and her problems and she had just told me that she had been on the phone all day to a freind crying.. I said "whats happened" and to my complete and utter surprise she said "you" .. I stopped in my tracks and said "pardon" she said " you not likeing me really has upset and offended me" I just stared at her, standing there on the side of the road totally gob smacked.. Seriously this is supposed to be an adult, she is married and has a child, she has friends and here she is makeing me feel so uncomfortable I felt like pukeing.. My back went up instantly and I once again told her "I need my privacy, I dont want you in my back pocket, you come over contantly unanounced and uninvited, you know I was about to go pick up Grace, THIS IS A JOKE!" and I walked off on her.. This is frigging ridiculous, this is the shit that happens in grade 7 not in your 30's.
An hour ago, all tied up in knots she is at my door step again, she has calmed down and she appologises, I say "its ok, but keep in mind that I am my own person, this is my home and I like to feel at home here not stressed and watched" she hugged me and said, "you are such a wonderful friend" .. no Im not, I thought, I am doing everything in my power to avoid you.. but I smiled and told her that I had to finish the house work.. she JUST FUCKING STOOD THERE!!!!!!! I switched on the vacume and pretended she wasnt there but she was and this pissed me the fuck off, I kicked the vacume off and said really pissy like "you may as wellggo home, I have to finish this before I pick up Fin and I have bathroom to do yet" SHE STILL STOOD THERE!!!!!! she said "it's ok, I will wait" FUCCCCKKKKKKKK.. I yelled "GO HOME!!!"
now call me a bitch, I dont care, I have had a fucking gut full, I was so wound up I made a coffee and sat on the rear deck with a book to calm down, I hear "Kylieeee" I look over the railing and there she is in her rear yard, "I thought you had to clean bathroom" .. I cracked it big time and told her to fuck off and get her own life.
I AM FUCKING FUMING!