Hmm... I could've sworn I had explained the difference in the original post. Solipsism had made you oblivious to it. As I had said, complicated would still mean a functioning system. Confusing can indicate a dysfunctional system. Seriously, if you're too lazy to dig through a dictionary, just admit it.

Obviously a failed conversation between a mangina and a typical girl.

This is how my conversation would have gone.
BF: "Hi. how was your day?" (I will not use terms of endearment unless she deserves it)
GF: "FINE! *A long face"
BF: "You sure?"
GF: "I said i'm FINE!"
BF: "Cool."

At this point, the GF will either continue sulking quietly, or go into rage mode. Given that she goes into rage mode, this is probably how the conversation will go.
GF: "You're supposed to ask me 'What's with the long face?'
BF: "Not anymore."

And that will be the end of it. Guess what I just did? I punished bad behaviour. If she'd calm down and talk, I'd reward her with being empathizing. No "complication" involved. Yeah yeah, you manginas and girls will say "any girl will dump you in a heartbeat if you treat her that way", well guess what, they (yes that's right, THEY) didn't. If you don't have the balls to try it, don't claim to know it.

That's why this "navigation" work IS complicated. Slightest mistake drops it to the bottom of the ocean.
But, the good thing is that you always have a next round with another woman. Maybe you will do better the next time.