Jason noticed you when you moved in.
I mean, Jason usually knows whenever someone moved into the apartment complex, it wasn't that hard for him. Especially if they're next door to him.
Jason had a lot of trauma from the wars and quests he's been on. So it's nice that he can just relax in the mortal world with everyone else. He's already graduated, and yet, he still has nightmares.
From what you ask? From his death-experience, but just so happened to wake up when they were about to bring his body. Hence, why he wakes up every night sweating.
His music helps him cope with that, and that's where you come in. You kept on telling him to lower his music, since you had to study for college and didn't want a lot of noise.
Jason, being the polite person he is, tried to explain to you that, with using a fake story, he had trauma and needed his music loud. You told him to buy headphones. Damn.
You were right on that.
But, he said that he needs the vibration, and you just scoffed walking back to your apartment. Sure, Jason didn't usually act like... This. He did need his music though. Without headphones.
.
.
.
Jason woke up to some fits of coughs. And his newly nightmare, where he gotten killed by Caligula. Just a dream, though, because he survived Caligula.
But, he then realized there was smoke and he reacted fast. Jason got up, glad he hadn't slept with sleep-clothes on, and just his regular white T-shirt and jeans.
He put on some slip-ons and ran out the door seeing a fire coming from your apartment. Jason rammed the door quickly, his eyes wide, as he spotted you, unconscious, and your ankle was clearly sprained.
Jason had went at god-speed as he picked you up and ran out. He yelled out, "FIRE!?", as the fire alarms started going off and people rushing out, their eyes wide as they saw him carrying you.
He rushed out of the building and called 911, telling them about the situation. Jason knew he could summon some rain, but it was a clear day.
He then decided to do it anyway, even if it would slightly hurt him. He snapped out of his thoughts as you woke up, wincing acting your ankle.
"Hey, it's okay! I need to go grab the rest, don't go anywhere!" He said frantically as he rushed back inside, grabbing more people, as he went.