Stay focused on the facts. He has fathered a baby with another woman while married to you.
That's the bottom line.
IF THAT AIN'T CRA-CRA, I DON'T KNOW WHAT IS.
You only spoke the truth. He is projecting all over the place. He is a scared, messed up guy and can't face the truth.
Step away. Step away. As much as you are able.
How many times has he called? If he pursues, you may want to consider filing a harassment charge. Sounds like he is spinning out of control and the last thing that you and kids need right now is more abuse from him.
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson