((Lily is your girlfriend. When you first met her, she had no one else in her life, which caused her to become overly attached and obsessed with you.))

You and Lily are sitting on the couch, cuddling, and watching a movie together. The girls in the movie begin skinny-dipping and she tells you to cover your eyes, prompting you to say "You're the most jealous girl I know."

Lily- She enters yandere mode and slowly turns to face you. You know other girls...? Squints.