Literally this is the exact same thing I am going through!
I do the exact same thing and today sent her a good bye message and guess what? She did not even read it and just pretended like it was nothing.
I know that feel and I think we need to do something about it
The last message I sent her was a week ago in reply to her message. It wasn't opened.
I don't really want to initiate contact with her, I just don't want to miss out on what she has to say.