I read through all of your threads to catch up on the parts that I missed and had a few questions. Has the silent treatment been a recent thing since she moved to the other room 2 months ago or did it start 10 months ago, or 7 years ago? I know she was emotionally backing off for much of this time.
~2 months ago you said you were constantly begging and pleading with her. How did this relate to the silent treatment. Did it start before, right after you begged, did you beg due to it, etc.
How often are you saying things to her with no reply. Are you saying hi, good morning, goodnight every change you can even when she rarely replies? When she does talk to you or chat what happened how were you interacting with her before that. Did you engage or did she.
What do you think she expects you to do right now. Put yourself in her shoes for a second and think about this, what would she expect you to do if she began to have a conversation with you. What would she expect you to do if she continued to ignore you. How does her expectations of you compare to what you have been doing so far.
Accept what is, let go of what was, and have faith in what will be