@Yautja she isn't as bad as that other dude. that dude was just plain insufferable whereas this girl is kinda cute and still has the possibility of bringing more charm to this series
@ac1d1c that's how it always starts with these types of character, but 9/10 times, they usually just quickly devolve into constant roadblock or drama-vending machines on the fritz. The Yandere ""friend"" from Komi-san is a good example, as is the 'friend' from Fudatsuki. Honestly, there's usually one of those types in seinen romances involving teenagers or characters in their early 20's (and uncommonly in shoujo, which itself has the rival friend/brother problem).
and that guys is how you cut any type of relationship between human beings, may it be friendship, familly and last but CERTAINLY not least a start of romance