I think the times that she mentioned "getting a drink" was her just having casual talk, and maybe just a hint of flirting, but just a hint. I think you took this as a sign. If it is ever EVER brought up again just say "yea, maybe". I may have even given that advice to you before. That way you spare your feelings if she is just being casual.

In regards to the financials. You still have a few more months left. You can see how much up and down the weeks can go. I'd say worry about that when you have maybe 3 weeks left. If you want a divorce then, ok, that is your decision. My instincts tell me that you won't. Who's to say that you stop financially supporting her a reality will kick in. Then maybe she will have anxiety, real life anxiety to worry about. Sorry, I get super annoyed that she plays that anxiety card on you. Most spouses who separate have to support themselves, not sit pretty on hubbys dime. It says they get anxious around the kids. Smh.

Keep working on yourself. I think when the "left behind" start getting a backbone or just straight not giving a crap, they notice. Haha. Stay strong!