There I go again sounding confrontational!

Why do all my emails and posts and general writings sound so up-front and in-your-face? I don't know. It's particularly bad when writing to girlfriends and such. I have to read the letter over like 5 times to weed out anything that could be remotely construed as arrogant or harsh or rough or angry or blunt or uncaring or anything of this nature. Because if you strike just one wrong note, you ruin the piece, you know? And then you don't get a piece...
This takes quite a bit of energy.
I think it may be because of the music I listen to as I write this stuff--urgent do-or-die battle music!! The emotion I'm trying to pass on is really "passionate intensity" rather than any flavor of confrontation.