Patrick have played dangerous game here.
I wonder this will cause Louise break apart if she awared that 2 of the boys in her debut class are into Kate.
Though, Louise have been more caring in the last chapter. It still felt uneasy to see them like this.
In another note, Rick is a bit overconfidence and act more shadow roles than the face. He probably has a bit interest in Lou, because of debut. That is why he choose her. (Although, he probably think he has been doing for his master. But, what would happen if he realized it.)
Also, Sara told him to grow up is a bit weird. But, I guess her world of 'adult' is quite narrow. Since they have been told to do in 'guide line' after all.