Coc is determation and never surrender.
I remember during Marineford when Whitebeard and Luffy arrrived.
On both occasions, Ace was just laughing saying "i knew you guys would come. why did you take so long?" and he definitely wasn't crying and telling them to leave him be.
He also didn't spend a good chunk of his life doubting his very existence.
Yes, yes. Never a CoC user shows signs of vulnerability.