I've searched the existing tags for this fic and I didn't see it. I read it several months ago. What I rememeber is that Jensen and Jared are in high school and are a couple. They are at a party and everyone decides to go on a beer run. They get into an accident and Jared slips into a coma that lasts for several years. Jensen goes off to college, where his roommate is Misha. Jensen eventually becomes involved with Chris. One day, Jared's family (Jeff?) calls Jensen to tell him that Jared is awake. Jensen is hesitant to visit Jared. He eventually goes to see Jared. At one point, Chris follows Jensen and causes a scene at Jared's welcome home party.

ETA: FIC FOUND IN COMMENTS