If his health issues are not care related, I will deeply and sincerely apologize. That's what men do. I also (even though I'm not religious) pray that your kid is ok. I also pray that you and baby momma get your fucking shit together and make the kid your priority...
Not whores, or ex boyfriends, or making each other jealous.
That being said, no denial of malnutrition being related, makes me think no apology will be forth coming.
Bottom line... Get your shit together. No one is gonna sympathize with you while a kid is suffering. Whether they like me or not, that's universal.