Emma Munro weighed in on the cheating dispute involving Andrada Pop, Ben Holbrough and Olivia Sanderson.
The former Love Island contestant uploaded a TikTok that required no spoken commentary to convey her view.
Set to "All I See" by Lance Savali, the clip shows Munro scratching her head and appearing puzzled.
Across the video she added the caption: "Me watching a girl brag about being the other woman. But all I see is an insecure pick me with no self respect."
Andrada and Ben have experienced a volatile relationship since meeting on the show, with Pop repeatedly accusing Holbrough of infidelity.
Olivia stepped forward as one of the women Ben allegedly kissed, posting a video that seemed to celebrate herself as "the other girl".
Pop claimed Olivia told her she had snogged Ben at an event and was unaware they were back on.
The 23-year-old reportedly asked Pop if she could "go there" with former taxi driver Holbrough.
During a chat on Joe Bagg's podcast, Pop replied bluntly: "No - we are f***ing!"
She added: "Then she [Olivia] was like, 'Oh my god I didn't know - we kissed last week!' "I am then like, 'Hold on, what do you mean you kissed last week'."
Olivia briefly appeared on series 13 of Love Island during Casa Amor, failed to make a connection and was eliminated.
Andrada and Ben originally met on series 12 of Love Island last year.