(Ereri) Saving the Broken and the Damned

Eren is a simple teen. At least, that is what a stranger would think.
Someone he trusted and loved abused and raped him, no one will leave him alone, his mother is dead with his dad in rehab, and his grades are dropping.
Practically a living hell, yes?
But one day, he meets a man, who brought light into Eren's dark life. Everything seems just fine.
Untill his abuser gets out of prison, there's a rumor about the one he loves and his principle, and He's uncertain about anything. Back into the darkness Eren goes.
Is it possible that the same man he met only months ago save him?
Despite how Broken Eren is? or will Eren be stuck in the dark?