First things first, [grammar nazi] for the love of god use paragraphs man, that was a complete **** to read[/grammar nazi]
Apart from that was an interesting read, the illness sounds seriously ****** up, my short term memory is a bit dodgy at times but never to that extent and i can't even begin to imagine what it is like to have to deal with all of that. Glad to hear that you are getting better tough, although it sounds like you still have a fair amount of work to do to completely conquer your illness, good luck is all i can say really.
As for the relationship thing, just walk away, brak all contact with Holly (not saying she's done anything wrong) but it works, when i split up with my ex 18 months ago now, at first i tried to stay frineds with her and it just hurt even more after a month we stopped talking and in one week after that i had gone further to dealing with it than i had in a month before hand.
It may hurt but don't sit there beating yourself up about it, you loved her and it went tit's up, welcome to the wonderful land of life where **** happens and then you die

We have all been there and at the time it feels as if someone has reached down your throat and torn out your innards, but in time it will heal and you will look back on it with a smile, remembering all the good times you had together, and realise that you wern't actually right for each other, and you will, again with time, come to realise this and look back on things which become more and more apparent as to why you were not meant to be.
At the end of the day i think you need to take a bit of your own advice, you said that at one point during your illness you adopted a **** you attitude, you did it once at a much more serous and difficult point, do it again.
Good luck dude
