My gf of nearly 6 months has gone Antarctica COLD on me since our argument last week.

How we connected: we were college friends and sometimes partied at clubs and had lunch together. After college, her job brought her pretty much into my neighborhood again and she reached out to me via fb. Now I had studied a lot of PUA material throughout the years but never regularly practiced it, so a lot of my actions during our courtship was very AFC...yet, she somehow found me charming and worthwhile and initiated our first kiss after we were in a "hot moment" on her bed and I asked "do you want to kiss me?" She kept saying "I think I'm falling for you...is that ok?" when we f'd (honeymoon phase of 2-3 months).

How it fell apart: I think that I started to take her for granted once I had solidified our relationship and got sloppy and lazy. I started showing up to meet her at her apartment in track pants and sweats after gym sessions. I started responding very AFC to shit tests and using logic instead of appealing to emotion and the real situation when having small arguments (this led to the Final Blowup, which is why I'm in this sad state of affairs now). I was too available (I'm job searching, whereas she is super busy and working all the time). Now that I smell what's been rotting all along, I realize that she has started showing up late to our meetings. Since our blowup, I have tried to repent and asked for a chance to work things out, and even mailed her a handwritten lettering saying such and saying that time will heal things and temper anger. She has all but made up her mind that I emotionally vacated her when we bickered and I said I needed a time-out to cool off with NC. I was so AFC until I found this board through google search and re-kindled my appreciation for PUA game psychology. Anyway, the pattern of similar threads to this seem to show that she has lost interest and attraction for me and all but checked out, and I am merely holding on to a distant ghost.

My question: How long should I wait before I officially break up with her since I mailed that AFC letter 2 days ago? Should I use a strategy to try to get her back?

Factors: She's into relationship books like "Marry him: the case for settling for mr. good enough" and dramatic relationship shows like Sex and the City and other soap operas...I have noticed that her thinking and the things she says directly correlate with quotes and principles from these movies. And based on what has transpired between us, she may not be willing to give it a chance.

Thanks guys. No matter what, I will get my ass back on track and sarge asap. I've mourned this ghost long enough.