If you don't mind me saying I think you are putting way to much thought into the DB thing. I look at it more as a guideline not necessarily a one size fits all script that you must follow to the letter, hence the term do what works.
You had a nice convo the other day and she got some stuff off her chest. You felt great and she felt great. I don't know your W but you do.
Would inviting her out to dinner just for the evening be perceived as pursuing? I really would depend on the situation.
Last week my W was having a rough week. I sent her flowers. That is pursuing, I thought I wouldn't hear from her for a week, you know what I got? A 6 hr convo and her on the DB session. It worked.
I am not saying send her a singing telegram hire a clown and juggling monkeys or anything but a nice simple "W would you like to go to dinner on Vday just the two of us" would suffice.
