Breaking up after a long-term relationship feels like ripping out a piece of your soul—raw, disorienting, and harder than words can capture. Whether you’re the one ending it or on the receiving end, the pain hits deep. But why is initiating the split so terrifying, even when you know it’s right? Recently, Portland therapist Jeff Guenther shared five science-backed reasons on Instagram. Drawing from psychology and neuroscience, he explains the invisible forces gluing us to relationships past their prime. Understanding them? It’s your first step toward freedom.