OK so you take the time to defend your having children with your ex... And in the same paragraph say that your DD was indeed exposed to very damaging things. Do you understand that the blame part isn't even important? It's the effect on dd that actually matters.
Do you think that by saying it was exdh fault she was damaged, that you somehow make it ok to label her as dramatic and unreasonable? Your youngest child is reflecting back onto you the childhood that she was forced to endure. Why not show her compassion?
You take the time to insist you can't be blamed for the family atmosphere.... And in the same paragraph say that the children were indeed damaged by it. Can you not just skip the "it's not my fault!!!" and move on to "shit, my dc probably are dealing with a lot of baggage from their childhood, I should not dump my exasperations and frustrations on them"
Do you ever take any responsibility for anything? Or do you smell blame and instantly adopt a defensive posture, no matter the impact on yourself or others...?
No I was visiting to transition the dog but thought it could be a time to talk over what it is that is bothering her. I only meant that I thought that might be a time when I could reassure her in some way.
So you intended to travel to her to transition the dog, AND to talk over what was bothering her, AND to reassure her.... and you thought "gosh I know, I'll send shit, petulant messages to the person I want to talk to and reassure... that sounds very sensible". Don't you ever stop to think before you do things? Do you just feel feelings and then dump them on other people without a care?
See this is the thing. It doesn't matter that you were exasperated. You had no right to redirect your exasperation onto a person who, by your own admission, needed reassurance from you.
What can you do today that might cause you to stop and think before you say things to your children?