It is good to know what you want. That is the kind of decisiveness you need to see this through.
I can see you still feel bad for your W. You see this as an expression of love, but at this time you need to apply a certain amount of "tough love". By this, I mean that she needs to experience the downside of leaving without anyone bailing her out. Please hold the line on this, and do not tell her anything. Let her experience the consequences of her actions. Your job is to feel empathy for yourself (note not feel sorry for yourself). She left you, remember?
Your job is to provide a place that looks really appealing to her to return to, but not to tell her (pressure). Do not tell her all those things you want to say. Fight that instinct.
Instead keep working on yourself, so that you can present the best mykarma possible whenever you interact with her. Show her a strong man, not a weak little boy.
If you feel anxiety, just remind yourself "I can handle it".
SF
Spellfire aka Mike
"Women do not like controlling men. They respect and are attracted to men who control themselves. They ultimately are repelled by men who allow themselves to be controlled." -S&A
