Just a quick note about her "notice" regarding the book you're currently reading...
The point being... she noticed... and this is VERY important...
The DR book is more like a "workbook" in that you can look specifically at chapters that may suit your more specific situation.
It may feel like your W's bomb couldn't have come at a worse time. I and others can probably attest there is NEVER a good time. Still, I completely understand how the bomb could compound your stress.
One thing you will find we often say around here is it is ACTIONS not WORDS that makes a difference. You can give your W a lot of words to suggest that you are still you and that your R or M can be great. It will be your consistent actions that will show your W that you are a great person and someone she would be a fool to leave.
This could be a great opportunity for both you and your W to get to know you, all over again...
Find your inner peace and keep your chin up and keep on... keeping on... no matter what... it gets better...