Ace and you were best friends. You saved Ace successfully from the execution on marine Ford. But at the cost of loosing Marco in the process

back at the Moby Dick out on sea

Ace: How could you let him die!?

Ace: I don't know why I befriended you in the first place! Your Dead to me! The crew doesn't need you! Especially not me! Just get lost! I don't want to see you ever again! I hate you!

Ace know that he will probably regret what he just said