Just wanted to say hello and let you know I'm reading through your story again. I see some familiar refrains. I love this statement:
"Whatever - I'm not going to get stressed about his reactions when I have behaved reasonably."
This is what my XW does as well - overreaction or hostility as the result of me acting in a way she doesn't like. Doesn't matter what I did or didn't do - she still calls me names. Reconditioning myself to let it fly into the wind is hard.
This summer I had my children for the longest period since the D - three weeks - and when they had to leave I got the first migraine I've ever had in my life. Don't know why I'm telling you this - maybe just to commiserate on how much what is happening to our children affects us.
A 7 YO should not be left alone. Most divorce papers require a responsible adult designated by either parent be the one to receive physical custody (if the parent is unavailable). Leaving a child along for 5 minutes is too long. You should document this, tell your XH that you are doing so (or don't - YMMV), and then tell your attorney as well.
Me: 43 XW: 43 T15 M14 D21, SS15, S11, D8 BD: 8/6 EA / possible PA discovered 9/29 D final 10/20