triangle face

The face one makes when they are brutally confronted with the sight of the other two people in a love triangle sharing an intimate moment and they are being excluded. This expression may show feelings of jealousy, anger, sadness, longing, betrayal, loneliness, resignation, and/or other negative emotions. Often seen on characters of teenage dramas such as Smallville.
Coined by Dominick Hannah, University of Chicago, BA, BS 2016

After months of flirting, Clark and Lana finally get together and share a passionate kiss in the loft. Chloe walks in and see them, and her face morphs into severe triangle face, filled with despair, hurt, and resignation.