Damian woke up and looked at his baby. He couldn't stop himself from smiling. Now that they are bonded he knows that they'll stay together forever. Even if he trusts Atlas he had this fear that he might leave him someday.
One of the people he trusted most abused then betrayed him so he doesn't have much faith in people. Ever since that he never met anyone who made him want to be together, he didn't even want to have one night stand that's how closed off he was.
But as soon as he saw Atlas he knew that he would do anything to make him his. Not only does he feel the same but he cares for his son too. If it wasn't for Atlas he would've never known how much pain Jacob was in.
He believed he resented and hated him when he just kept everything in, In that way Jacob is unfortunately like him. They both kept it in and he felt heartbroken when he saw how upset he was.