Responses
You was the right the first time, to be exact, it's: "Just be sure...he HAD found his first love but he hadn't graduated yet? Or is it a new guy who looks like his first love?"
I think that's what you're trying to get across? Anyways, to answer your question, it's the same guy, there's no new guy who looks like him.
I think he's like Chan... he just went and followed his first crush into the same high school.

To be sure... He has found his first love ?? But he was not graduted ? OR is it a new guy who looks like his first love ? ;;;;