I am very stuck in a situation.

I know you warn against 'oneitis' but I could get married to this woman.

Here's my story:
I've known this girl for 2.5 years, we've become almost best friends and we are very close. However, she's had a boyfriend all of this time. Recently she just broke up with her boyfriend.

Whenever she got drunk (even with her boyfriend) we would somewhat spoon, or she would touch my ass. Sometimes I think I notice IOIs.

Anyways...

I somehow got up the courage to tell her how I felt. Now, I suck at this whole game thing, I'm just starting, so It's not as if I have ever used any game on her. I am 100% confident around her, but obviously, for 2.5 years we have been friends.

She didn't really reply with much, but she slept outside my room that we were laying in because she was very confused. Her friend keeps telling me she doesn't like me. Secondly, I'm not sure if she's attracted to anyone, it seems like she was only attracted to her boyfriend. They broke up the next day which seemed odd, but, she apparently had been talking about this a long time??

A roadblock is that if I ever neg her she just gets offended and confused, and she is against the whole neg thing.

So...

I REALLY REALLY REALLY would like to know how I would accomplish my goal. What I should be reading and what I should be utilizing.

I am brand new to this whole game thing, but I am 100 to 110% confident around her, so I have absolutely no problem with any line or body movement, I am not nervous at all.

Like I said, if you help me, I will literally kick myself in the balls. I am fucking stumped here, how can I dig myself out of a 2.5 year trench, and what if she actually is so confused she isn't attracted to any guy??

ok after reading your post all the way through, from what I can see is that you're well and truly into the friends zone with her. I'd ignore all that drunk behaviour that shes done because it sounds like shes just fucking around like people do when they are drunk.
So personally, my way forward here would be to be different around her from what you've been like so she can see you in a different light, by all means I don't mean go out get a new haircut, listen to marilyn or take up cross stitch.
But change the way you are and deal with her, like you mentioned about her being anti-neg , so you don't do it as much. Why can't you neg her if you want to then if she throws a huff and offended tell her to 'behave' and pretend to pick up a rattle and give it to her. You know you aren't insulting her and after 2.5 years so should she ....so why be put her up on a pedestal? If she pushes the matter after that, just laugh it off and realise how daft she is being.
Also read some david deAngelo about sending mixed signals and disqualifying yourself, like flirt like hell with her, make sexual innuendos then say you work so well as just friends. The fact you've opened up to her about your feelings might make her think 'whats changed'. Also, there is some dispute I believe with this but I hate giving a straight answer straightaway unless its a no, I believe style has a few videos on youtube about making a girl jump through your hoop before you jump through theirs.
well there's my take on your situation, it may be a kill or cure strategy but what I can see is that worst case scenario is that you'll end up back in the friends zone.

ps: don't kick yourself in the balls till she agrees to kiss them better

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Confucius say Man with hand in bush- not always gardener

There's no point in negging your friend. The point of a neg is to lower a girl's self esteem for a short moment so you have a chance to DHV. Your friend obviously knows where you two stand with regards to value so a neg is pointless and it will be taken as an insult if your personality is not normally like that.

The only way to play this is to show her that you are a sexual being and that you want her. Behave very sexually around her and create some sexual tension.

Brendon, good point about about creating sexual tension , I believe we were making the same point about 'being seen in a new light' and being proactive rather than staying stagant and hoping for a change from her.
The negging point I made, was meant in a general term meaning that to do it if it feels natural for you to make a quip about her then just go for it , Obviously don't mean rip into her over a starbucks when you are talking about her nan in hospital, just when the situation feels natural for you to do it

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Confucius say Man with hand in bush- not always gardener