Yu Gyri seems to be Jeong Gyu-ri from Heart Signal 5 , and the main issue viewers are reacting to is the love-triangle tension around Park Woo- yeol and Kang Yu-kyung, not a confirmed “problem” with Gyri herself. Reports on Episode 3 say Yu-kyung felt Woo-yeol was drifting toward Gyri, while another article says Gyuri hesitated when Woo-yeol suggested speaking casually, which made their dynamic look shaky.

What viewers noticed

  • Woo-yeol was shown becoming warmer with Gyri, which triggered jealousy and a reality check for Yu-kyung.
  • Gyri later hesitated about dropping honorifics, which suggested she was uncomfortable with the pace or tone of the relationship.
  • A commentary video about Episode 3 argues Gyri may have started “losing” Woo-yeol because of how that episode unfolded, but that is opinion, not fact.

Likely meaning of the question

If you mean “why are people talking about Gyri,” it is mostly because:

  • she became a central figure in the triangle with Woo-yeol and Yu-kyung,
  • her reactions were read by some viewers as mixed or cautious,
  • and fandom discussion has been amplifying every small interaction.

Bottom line

So the simplest answer is: nothing is publicly “wrong” with Gyri; the attention is coming from romantic tension, editing, and viewer speculation around her connection with Woo-yeol.

TL;DR: Gyri is being discussed because of the Woo-yeol–Yu-kyung–Gyri triangle, especially Episode 3’s shift in chemistry and Gyri’s hesitation about getting closer.