Thank you for venting. I know the feeling of being numb to just fight through it all, especially when a child is at stake. You are strong and you have a right to be angry. Go ahead - let it all out. You deserve it - you deserve the chance to vent, to be heard and to get support.
I do have a story to share though....I went through a similar process of the separation and divorce last year. I have made the mistake of continuing to "stuff" my feelings to take care of our child. I have a support system, but can always use more - please, get yours.
I ended up with a flood of emotions over this last week and it has been overwhelming. I wish I would have sought more help, counseling, journaling, etc through the last year.
This is tough stuff, but you WILL make it through the valley. I did, and you and your darling child will too.
Hugs to you.