Thanks guys... .
Going places, I'm sure my r/s dynamic certainly did not help and instead exacerbated this tendency. I now see how I could spend countless effort trying to speak logic to my ex... .where he just couldn't think logically. How exhausting!
I too have just used email for very important stuff... .this worked... .I think.
Once removed, I'm in therapy. I'm thinking I can likely figure this one out more on my own and use my sessions for more tough stuff.
Lol! Yes, I'd like to be more succinct!

Communication was a mess growing up... .I feel as though I would need to spend much conscientious effort to undo my tendency of over explaining... .and just simply overthink it first... .then speak.
Allmessedup, I have been more thoughtful about "needing to control" as a trigger for me, so this is where this started. In therapy he suggested this. After thinking about all of my PTSD triggers, you can boil them all down to control. I have tended to think of control as a derogatory term, so I was not first comfortable with this idea.
If you really think about it though... .without the negativity... .if people just spoke or behaved in a manner that is not triggering... .there would be no triggers? I think many triggers are born from feeling out of control, that things are unpredictable, that we feel we are in a helpless position. So this idea of control being the opposite makes sense to me.
Specifically in terms of over speaking... .it can be thought of as a way to control what opinions and views the other is having about you. I do think that this is part of it... .I don't want the person to be offended... .over speaking is a way of trying to control their internal experience. I wish everyone I speak to can get the intention of my communication, being misunderstood bugs me... .so there it is again... ."it bugs me."
I know there has to be an insecurity issue there as well... .it just makes sense.
Not being allowed to speak for so long in my FOO makes me feel frustrated that the result is... .I often feel I am struggling with language as I type. Part of this is actual frustration of having to work four times as hard as the average person to express my thoughts. The other part is then I am aware at this frustration and am annoyed for my FOO exposure and how they did this to me.