Okay, so I have a question..
Valentine and Jocelyn’s baby boy (I am gonna call him Sebastian) used to play with Alec, right? So they must be born roughly around the same time. And Jace is canonly atleast a year or more younger than Alec.
So, when Valentine told everyone Jace was his son, why did no one put this together? Why did Maryse (who had seen Sebastian) and even Luke not put this together and realise that the timelines don’t match? Jace is way too young? I mean Jace and Clary barely have a 6 month difference?