You know what, even if you HAD been in a rage, it was perfectly justified.
And its not emotional or verbal abuse to hold someone accountable for dispicable behaviour
He left because his usual threat of leaving hadnt made you STFU, and he gambled on the fact of him walking out of the door would be the thing to terrify you into backing down, because he believes you will do anything to avoid the marriage break up, and he is playing on that need in you to avoid abandonment.
It seems from previous posts that this is an ongoing thing - from his threats to leave right at the start of the marriage, he likes to keep you scared and this has gradually worn you down, as you have let him get away with alot in order to avoid his threats.
Even when you kicked him out in the summer, he has viewed coming back not as a last chance, but as proof that he can behave how he wants and you will take him back. He probably thought you were getting a bit too confident, what with your book writing and everything, a bit too comfortable in the marriage, so needed something to knock you back into place. Because men like this dont want their wives doing well and being self confident. He wants you doubting and scared that he might leave, because like that he can behave how he likes and have nobody to answer to.
he has even said it. If he comes back you need to stop all your 'behaviour' - all your questioning, all your anger, all your writing, all your everything. Just be quiet and complient and a nice wifey. And he is not to blame at all, because he uttered the words 'Im sorry' and that should be that.
Not an example to set your children. Not if you dont want to watch them follow the same patterns of behaviours into their own relationships.