Family Reunion

Clary and Jace are together at last, but for how long? When Sebastian appears at the Institute, Isabelle and Simon can't find Alec. Jace and Clary get in a fight and Jace goes to Pandemonium to blow off steam. Then, he does something he's going to regret-he cheats on Clary. Then, 4 years later, Clary is back. What happens when Clary meets Jason? Will Jace get jealous?