Broken past , broken heart 

Finney makes it out of the grabber basement alone, Finney had always been somewhat alone but This was different Robin his best friend since kindergarten was not there, sure he had his sister but it wasn't the same, she was only nine he couldn't tell her his problems, she is supposed to Tell Finney her problems because there dad was a whole different story they couldn't trust him for anything

Finney moved to Hawkins Indiana  pretended to be perfect, had fake friends was popular every thing about him fake his hair his stupidity because Finney was very smart but Steve Harrington was not, but that just who Steve is, he was fake, he was doing what he needed to do to survive because the world is a cruel place especially to people like Finney Blake, so Steve Harrington killed Finney Blake, or maybe the grabber did, no one really knows but what we do know is that Finney Blake died in the basement with the other ghost boys

The part of Steve that is missing could never return Finney Blake was dead but Steve Harrington was not

Or steve is Finney and he's not very happy