@Tobi what? Being friendly is her nature and she clearly says that she's not into YW tho she has a crush on him. Is being friendly counted as flirting now? And about long afternoon, she's freaking curious man. What else could you feel if your favorite singer collab with someone you don't know plus your friend said they're pretty good. You'd ask too, right? She didn't even know YW, Hae-in and Long afternoon's situation so can you really say she's prying into someone's personal space and not just a simple curious music lover and a fan? I can't see anything to hate about her since she was introduced.
I don't care about your taste!