Re: not sure what to do, getting frustrated!
You want to focus on flirting more. Build more attraction. Part of that is becoming a puzzle she wants to solve. So you may want to calm down on any pillow talk for a bit in order to confuse her. Don't let her know what's inside your head. I would even talk about other women in front of her just to bring out any jealousy she might feel from that. (Don't overdo it though.)
I believe that pure unhindered attraction is UNCOMFORTABLE. So because you are friends, she may not like this and try to call you on it. But as long as you keep her within reach and not push her TOO far away from you then you should be fine and should not shake from this.
After a few weeks of increased flirting then you want to start qualifying her. Start telling her why you two wouldn't work out together. Then when she does something you like tell her you "made a mistake and want to get married again." Just roleplay and have fun with it. When she does something you don't like tell her you are getting a divorce, but you get to keep the condo.
"All things are subject to interpretation. Whichever interpretation prevails at a given time is a function of power and not truth."