When he found out his Mom was dying we only see his perspective on his behavior, not his Mom's. Yes sometimes he was a jerk, do you guys think you're all saints to your parents? Ungratefulness is common in children. He had no idea his Mom was sick because she hid it. If he was really the horrible son he thought himself to be, would he have shortened his own life to give his Mom a second chance?
Just you wait, we'll get the Mom's perspective about her son and you'll discover he's not the horrible person he made himself out to be at the beginning.
Also, Momma gonna be so mad when she finds out what he did to heal her too 😓😓😓😓😓😓😓