"He said he won't shout and we need to discuss what happens from here."
So he gets to plan in advance, to know what he wants to discuss, to choose when to discuss it ... but you don't? 
Please, please remember, Realitea, you don't need to discuss anything at this stage, just because he says so!
You can simply listen ... don't comment, don't defend yourself, don't offer, don't pacify ... just memorise this phrase ...
"I'll think about what you've said and I'll let you know what I decide".
If you really need a bit of variation in the 'conversation' you can now and again break it down to two phrases ...
"I'll think about what you've said". "I'll let you know what I decide".
You can even add in an extra phrase, if you like ...
"Can you clarify what you mean by that".
Beyond that, Realitea, do not go ... sew your mouth up
rather than allow him to manipulate you with his pre-planned discussion.
Speak slowly when you use 'the phrases'. Do not try to fill silences. Make notes if you like! If you can, get a third party (of your choosing) into the house to play with the children in another room, during this time.
Good luck!