Sum, I have been following along with your thread since the begining, and I think now you need to get out of this situation with your dignity and your sanity. If this marriage is going to get reconcilled it is going to need alot of time apart. the communications you are having with her do not seem to be helping your situation. In fact since I was last posted to you it seems to have gotten worst.
your wife screams and swears and threathens you way too much. I get the impression she hates you to the core. maybe for your previous actions maybe because of her current actions, probably doesnt matter. however, this statement, "Man it was tempting to start yelling back at her," sounds like you are almost to the point of having too much. The worse thing her is allowing her to push you to your limit which it does seem like she is trying to get you to do. (for financial or custody reasons possibly).
good luck, but distance yourself before she breaks you with her screaming, swearing and threats, sir.