You have been running on what I call "nervous energy" every since your W left. I think people go through different stages of a S and what you experienced last night was another stage. Maybe it was a test (of some kind) by your own body/mind to see if you could deal when all the energy left your body and you were completely deleted. At least, I got the impression you felt pretty drained. Perhaps it was your body/minds way of seeing if you could "accept" this stage of the R and learn to deal in it or if you would insist on staying where you had been.
When we gain new information in our lives, (depending ,of course, what it is....) I think we get an opportunity to use the information that we were given. You've been given a lot and last night was an opportunity to apply some of that knowledge.
I think you did super good about replying to her email. Knowing how lonely you were and how tempted you had been to text her......I give you a big gold star!
Hope you will be with friends today and not sit home alone.
Later, Sandi
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!