Ha well I was posting when you were. So here's a follow up.
The way you let her know you'll be ok without her is to be ok without her. The way you let her know you have a future regardless of her choice is to start walking your own best path into your own best future.
How I do that: I make my decisions for me and the kids. I don't worry about how it affects her. I let her go because I have no control over what she does...not with my thoughts, my decisions, my feelings, or my desires.
I'm not saying it's easy. I'm only saying it's been worth it. As for her, she knows where I am. The gate is open if she decides to go there and find me. So far in my case that is not what she has chosen. The D will likely be final at the end of December or in early January.
As the prayer goes, I intend to make 2016 a year where I change what I can, accept what I can't, and pray for and acquire all the wisdom I can get to help me know the difference. And be there for my boys.