It kinda reminds me of that one manwha where the guy found a diary that had future events in it (written by his future self). He also fixed his internal homophobia, his future family problems, and I think a new future was created where he got together with the guy he liked
I think Noah still hasn't come to terms that he loves Rachel. Like, he's unsure of what he views her as. Man, I don't know, fuck Noah.