You're getting good advice. I've got nothing more to add. We've discussed this all before.
You are forgetting something VERY IMPORTANT Frac... You say she has not thrown tantrums, called etc. For a woman who was so determined to tell you it was over and start on the path of separation or divorce... she is very quiet. Leave her in her own confusion, her own mind is twisting. Why else would she be reaching out on her LoA forums for advice. Eventually she is going to need to contact you.
Remember this is a mental war. Just like you're wondering what is going on in her mind she is doing the same with you. The "silence" is something you're both going to have to fight. That's why I told you that you need to keep busy. Plan your activities, find new things you want to do. Bury yourself with work.
And what happened to that agreement we had that you will only dedicate ONE hour of your day to thinking about her? Stick to it, I know you can. Until the pain eases to a dull ache you are not ready to talk.
