Will knows he needs help. As much as he tries to deny it, his best friend tying a brick to his foot and throwing it over board along with him, had quite the traumatic effects on him.

He has a certain unease towards water, hell, what is he trying to pretend? He cant even shower properly without panicking when his head is under water...

He needs help, and as you offer your help, he is in no position denying it...