Weekends and holidays are very slow on the board. Don't take it personally if you don't get a reply instantly.
Don't send him emails. Don't contact him in any way. If he is "dark" then he doesn't want communication with you. You cut any chance of getting back together with him when you send him emails, pictures, etc. Don't tell him you love him, etc. It does not work with a walk-away. I promise you that it pushes him further away.
You must take your focus off trying to fix him, b/c it won't work. Put all your time & energy on building a good, healthy life for yourself. In time, perhaps he will be ready to talk and listen.....but not now.
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!