I noticed that you've made a lot of progress on the Nice Guy front and in fact I'm impressed that you progressed so fast because it didn't look promising in the beginning. It's all for you.
Another book that you might consider is "Models" by Mark Manson. It's about attracting women through honesty (not pick-up lines) and what I've read so far (10% of the book) applies perfectly to re-attracting our WAW. This section talks about how neediness is repulsive to women, more than to men, and yet it's a behavior that we see a lot from LBH on these boards. Sandi2, Wonka and Starsk309 are three of the main critics of the doormat/gay boyfriend approach. You have been criticized for this (along with 90% of us LBH) and I think you still display some of this behavior with your WAW. Anyway, another book to consider.
As you know, I'm always interested to see what kind of external opportunities LBS get, so I'm interested in this old colleague getting in touch. I'd say that in your case, your emotions are too raw but also your WAW has not put herself into some of the more extreme situations, like mine has (moving in with OM), so your justification for going on dates or making moves on other women is on less solid ground. I'm not saying that's what you're doing with her, it's just a thought about the general topic in your sitch.
I have seen your post at the end of your other thread. My first question is: Why did you bury it there while you had already started this new thread?
M39 D6 D3 (at S) S 2014-09 D 2016-09
"You can't start a fire sitting around, crying over a broken heart" - Bruce Springsteen.