I just posted in GD that nobody gave me the memo that the "Terrible Two's" actually can start at 18 months! LOL! But that's the story I read yesterday....that "Terrible Two's" is a misnomer. As for not liking you guys to talk to each other? I'd ignore the screaming behavior pointedly for 3 days, and it should stop-- as she learns that her screaming will not control the situation. She has to learn to accept that mommy and daddy talk to each other, and that's that. I mean, what else would you want to do? Certainly not convey the idea that she has the right to tell you two when and if you should talk to each other! LOL!
Good luck. I'm sure others have ideas on this subject.
Faith