@CelticMutt Nah, she only appeared to become imminent threat for onodera and chitoge for a little while. The fact that she only have a mini arc explaining why she is part of the promised girl candidate is the moment she is thrown out of the picture to seriously stand against the original triangle.
Even if it isn't love triangle
by definition, it doesn't change my argument that whenever more love rivals introduced it simply meant the manga just went down the shitter, especially if it was done as horribly as this chapter.