Lan, I am not sure you can do it alone. I said MC is difficult but it's important when things keep repeating, they open your eyes and give you tools. You have been reading and learning all along but your wife's maturity over relationships is non existent. Her actions show that.
So, unless she figures out what she is looking for in flirting etc etc, what makes you think that the moment you will "take a break" she will not do it again? I think in her mind the boundaries are very vague because her needs are so demanding and I dont think NO one man could satisfy her. So, IMO, unless SHE figures it out, the "cycle" will keep repeating until you "break" or she feels she doesnt need you anymore.
I agree with fb2 about a couple of point she made, but I think she should have told you before going down that path again...
IC would be helpful for her. Maybe you should try and engage her in it, through MC (that's how my H went for a while, he was refusing to).
BP back to normal, good, a stroke wouldnt do good to anyone at this point and you probably wouldnt be able to type your news for us... K