Re: She knows all about PUA and gaming. Have no idea what to do now?
Ahahaha I love women like this. You might just want to cut your losses; I guarantee you that she's noticed the freezing out etc but is choosing not to acknowledge it. She may even be counter-gaming you.
Otherwise, you're going to have to go a completely different route. If you assume that she knows at least as much about PUA as you do (and it sounds like she's a pro) then you can be guaranteed that any technique is going to translate to a DLV.
If you were to stop using all techniques altogether she would most likely notice. Again, you're out in bat country here. Taking the hint shows that you're capable of understanding her subtext: "I know what you're doing and it's not going to work, so you might as well stop trying."
If you're going to continue pursuing her, focus on your productivity at work, because she sounds like someone who is attracted to success. She's showing you what kind of behaviour she wants from you: Cordial and official. It sounds beta to concede but it's the only way in, and let's face it: There's nothing beta about gaming an alpha.
you are a soul playing a game of human
might as well unlock all the secret areas