"“You’re being too sensitive” — in the wrong hands — is almost always an insult... It’s an attempt to at once dismiss your feelings while also turning the tables and making you at blame, guilty for myriad things: for finding fault with another’s actions, for having thin skin, but most importantly, for bothering the offender with your feelings...
Blaming someone for being too sensitive dismisses their reality as irrational and immediately paints them as a victim. It tells them how they should feel, too. Most importantly, it turns a positive trait into a personality defect.
Being sensitive is not a fault, and rationality and sensitivity can coexist. I’ve written before about the benefits of being a highly sensitive person; studies also consistently find that people with high emotional intelligence make better leaders, friends and coworkers. They’re more self-aware, more empathetic, more motivated and have better social skills...
“You’re too sensitive” is often a benign scapegoat for other, more damaging opinions. It’s “you’re crazy”/ “I don’t respect you”/ “my feelings are more important than yours”/ “I don’t want to deal with you right now”/ “I don’t have the requisite care/love for you to take you into consideration”/ “I don’t care about you” in disguise." -Helena Bala