Communication issue?

Relationship has ended, living in same house. That can’t be changed right now. It’s a huge communication break down that ended it- I got upset and didn’t communicate it properly. I want to talk to him about this.
Since break up I have been having spending a lot of time alone , lots of counselling by phone and in person because I recognise the things that I need to change about my thought patterns, how I communicate and learning to fall into someone without shutting them out.

In this time alone I have been as I said above spending time alone and also leaving the house to have counselling sessions (I don’t want him to see me all kinds of ruined- I’m ashamed of being this wrecked over this) last night I finished work and had an hour long phone counselling session but sat in work car park then went home I got home few mins after this. He seemed he was mad by shutting me out again with ignorance to my general questions and his body language. How do I communicate that this is what I am doing without showing too much emotion. I feel obliged to tell him so it puts his mind at rest.
Communication issue?
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