You know, I see where Narumi is coming from. I think what she's saying is wrong but it IS true that Hotaruko got really lucky with Hikaru noticing her dancing and deciding to take her under his wing and everything. She doesn't seem at all grateful to him for that, which isn't really fair imo, she's not even friendly to him (she doesn't owe him more than that but she does owe him that)
As for Narumi, talk about gay panic lmao. She's obviously taking out her own frustrations on Hotaruko, especially her jealousy.