I haven't read the whole thread, just the first few pages. It's a pretty unanimous reaction of " it's totally unreasonable to storm off on someone" .
Coming from the perspective of someone who actually used to do this to my husband , a long time ago , between maybe the age of 23-25, I stormed off on him probably 6 to 10 times, usually in town when we were shopping. .
I'm totally ashamed of this btw , just trying to give you an example if what I was thinking when it happened. I have had a load of counselling since and am much more emotionally intelligent.
I would think that I felt trapped , that I felt angry and about to explode. The biggest feeling was definitely " if he doesn't listen to my words , he can listen to my actions", I wanted him to come after me, mollycoddle me , say " oh poor , poor bramberry... I will take care of you and put you first always". It was punishment for not doing exactly what I wanted to do , when I wanted to do it.
I had PTSD due to abuse in childhood, diagnosed a few years after this. I'm not proud of any of it. Just if it helps you now to maybe realise what he's thinking. I would have loved my husband to plead with me to stay. But it was only when he completely stopped playing my games that I started to work on myself.
I'm sorry it's happening to you. I don't think you should feel sorry for your husband. He's trying to manipulate you , just as I used to try and manipulate my husband.