More advice please.
All the replies have really helped gain perspective on this (as much as I can so close to the horrid event) however i'm worried about when I see her to get the explanation. My attitude to her since reading this thread has changed, I see how cowardly and selfish she has been so feel like I could be a right **** to her. What would it achieve?
There's a great quote about revenge from Marcus Aurelius which is as applicable today as it was >1800 years ago. I don't know which of the various different translations I've seen is the most accurate, but the general idea is clear - the best revenge is to not be like the person who has harmed you. It was true then, it's true now. If you act as badly as or worse than someone who has harmed you, you've degraded yourself and given them a justification they can use for their own actions if they feel any guilt over them. So you're helping them and hindering yourself...how does that help you? It's not even revenge, really. It's instinct. It's understandable. It's stupid and counter-productive.
You're probably wanting answers. It's almost certain that she's been thinking about leaving for quite some time and planning it for at least weeks, but it's completely unexpected for you and you don't know why. So you'll probably want to ask her why. The problem is...what would be the point? Even if she did give you an answer (and she's already written that she won't), what reason would you have to believe it?
I am still fearful of seeing her and breaking down and trying to get her back.. I really am unsure how to approach it.
It's over. She left you in her head some time ago. This wasn't a spur of the moment decision she wasn't really sure about. She chose, she planned and she carried out that plan. Even if she did come back...back to what? Back to her wondering why she came back after choosing to leave. Back to you wondering every day if you're going to come home to an empty flat and a note again. That's not a good life.
When you've been wounded, you can either keep poking at the wound or you can clean it up, patch it up with a plaster or bandage or stitches and keep it clean while it heals. Poking at it makes it take longer to heal, makes infection more likely and makes scarring worse. What it won't do is make the wound disappear. It never makes the wound disappear. It's clearer and simpler with physical wounds, but the general idea applies to psychological and emotional wounds too.
Clean it up - sort out the practical stuff like possessions, rent, bills, etc, and remove any of the trappings of the relationship that no longer exists. The physical ones are the easiest, e.g. photos or anything else with associated memories. Bin them or at least give them to someone you trust who won't give them back until you're over it. You were already thinking about moving out of the flat you shared with her. That's a fortunate thing - more cleaning up the wound. If you live somewhere else, you won't live in a reminder of her. The mental cleaning up is rather more difficult, but it'll be easier without physical stuff that acts as reminders.
Patch it up - divert your attention into other things. You've got a job you want and which pays well - that's an excellent start. Find other things for when you're not at work. Make a new habit of something. Exercise is usually a good idea. Is there anything else you've wanted to do but haven't? Learn French. Learn Klingon. Learn ballroom dancing. It doesn't matter what it is you're doing, just that you're doing something and not picking at the wound.
Keep it clean - If you find yourself thinking about it, stop. Do something. Work out. Go out and walk somewhere. Watch something funny or interesting (but
really watch it - if you do something that's not physical, you can easily slide into thinking about it again). Drive to the shore just to look at the sea. Dance around like a lunatic. Make something. Do some gardening. Just do something and do it wholeheartedly. Even if it's making a 20 foot long collage of My Little Pony images. Well, OK, maybe not that
