Click to see Spoiler:
I read that in the script, that was not shown on air, Jake (Scot Foley) only calls Fitz to the hospital, because the doctor who examines Olivia thinks that Jake is the boyfriend and that he abused her. Jake denies he is the boyfriend and says she fell down and hit her head, but the doctor insists on calling the police and to stop him, Jake calls Fitz out of desperation. It does kind of make sense.