Yang and Blake had the exact same opinion of the new team leader, Jaune Arc.
He was hilariously entertaining.
While Blake preferred books and quiet, and Yang liked fighting and causing trouble herself, Jaune Arc's life was like a soap opera.
Despite one of the subjects being her little sister, Yang couldn't help but find the everyday life of Jaune and his clingy sidekicks to be hugely entertaining. She knew Jaune was a good guy, and he wouldn't do anything to hurt Ruby, so she brushed off her slight concerns and enjoyed the show.
Blake thought it was funny, and couldn't help but think that it would only get more entertaining the longer Ruby, Neo, and maybe Pyrrha fought over him without Jaune realizing their feelings. Yang was awful at keeping quiet, which is why she had covered for her the second she almost spilled that Ruby and Neo had feelings for Jaune.
Every day, they could just sit in their bed and watch as Ruby and Neo had another grudge match over a blond as dense as his hair color would suggest.
The utter bewilderment on his face whenever Ruby would once again convince him to sleep in her bed through a sniffle and some waterworks as Neo glared at Ruby and attempted the same was rapture.
Though Yang and Blake had both hated having Neo join their team at first, they had changed their mind the second she started showing interest in Jaune. Ruby had puffed up like a house cat and tried to defend 'her claim', and Jaune had remained unknowing.
Jaune had took over as leader, which was mostly necessary because Ruby was too interested in him to try to take charge.
All this, and school had barely started.