I just wanted to say I think you're doing great and let you know I don't agree with A18 either.
Don't be so hard on yourself, she has been your best friend since high school it is understandable you are struggling.
I definitely think you should learn to start interacting with women at a friendly level.
Again the only knock I have is there is way to much communication. Most of it is her fault and I truly believe she would love to still be friends.
I was talking to a woman friend of mine who wants a divorce and told me she would love to be friends with her husband she just doesn't want to be married to him anymore.