It is not up to you to provide for this other child.
Does he think you will contribute with your salary or that he will contribute less to your household?
He is a mess and he does not see a way out. Of course, that is what happens and now, he is paying the price.
The Bomb: 08/05 H moves out: 06/2006 H moves back: 01/07 & Out again: 01/07 H moves back: 03/08 & Out again: 04/08 H moves back: 05/09 & Out again: 07/09 Divorced 08-12 Kids: 22, 20, 19