Grace Winslow and Professor Catherine Harrow don't know each other. Not yet. Grace is a guarded freshman trying to outrun her mother's legacy. Catherine is a sharp, cold psychology professor who teaches a course called Psychology of Human Intimacy. After their first class, something shifts. Something quiet. Something dangerous. When a family connection is unexpectedly revealed-through a woman they've both learned to love and resent-boundaries begin to blur. What begins in silence becomes obsession. Attachment Theory is a sapphic, slow-burn academic romance about intimacy, power, longing, and everything we pretend not to feel.

Lilith Hawthorne is a 20 year old psychology student with a complicated heart and more issues than she likes to admit. She feels too much, thinks too hard, and often drowns in the weight of her own empathy. She's curious, emotionally intense, and carries unresolved wounds especially the kind only a mother can leave behind. Valentina Salvatore is a 30 year old CEO. She works hard to build her career and keep things running smoothly. At the same time, she loves deeply but carefully, making sure her feelings go to the right person. She has learned to protect her heart and waits for someone who matches the way she feels. Where Lilith is full of feelings and unpredictability, Valentina has her life sorted out. They come from different worlds and have different ways of living, but what if that's exactly why they fit?

After a messy year, all Sarah wants is to stay focused. She's 18, in her final year of high school, and determined to stay out of trouble. But things get complicated when she meets her new English teacher, Ms. Miller. Addison Miller is the last person Sarah should be drawn to. She's twice her age, her teacher, recently divorced, and completely off-limits. Strict, unreadable... and somehow, strangely familiar. Sarah knows she shouldn't get involved. But knowing is one thing, wanting is another entirely. Slow burn | Teacher x Student | Age gap