The new guy looks a bit like Finn, like he could be his less good looking brother, and of course Scottish, I wonder if the producers are trying to cause some drama with Paige and fin. I absolutely don't think she will jump ship.
We didn't see how shaugna felt about him, but if she's decided to go for it, I'd not wish to be the woman who stands in her way,,,he might feel like he needs to couple up with her. Because it's so late in the show and because she's still popular with the public. He's likely in a tough spot there.
I think bieber just comes across too much like everyone's little brother. It's not doing it for the girls. A few years and the guy will come into his own, right now though I think that's the issue, he's like everyone's little brother, irrelevant of his looks.