Something I don’t get

Hi again! I just finished my reread of Payback and I don’t understand this interaction. Malik tells Rackoff after ramming his head into him that it was ‘for ruining Hector’s life’ when Rackoff responds that if it weren’t for him Hector wouldn’t exist, Malik responds with ‘that’s another thing you pay for’ 

Does this mean that Malik is angry at Hector for existing? I don’t get it. If he was, that would be pretty funny, and very on brand seeing that Malik still cares for Hector but is still very mad. Thank you!!