Yes, this blog is primarily a MGTOW blog. Unless you’re a complete hermit you’ll have to deal with women in one form or another. There are also more than a few of us that have been friend zoned (present company included) The personal pain involved in this can be overwhelming especially if you keep it bottled up.
You also need to keep in mind here that there is always a possibility that someone could come along. Biology is something that every man has to deal with and things in your life can change. I personally do research on PUA material not to get laid, but because of all the groups in the manosphere PUA’s have the best insight into female nature and how to have women view you favorably.
But if this has happened to you a massive sharp break is the best way, letting her know that what she has been doing to you is unacceptable. The one I did this too last year got told in a way that she was going to remember.