Your brain edits heartbreak memories—amplifying the best moments while suppressing painful patterns—making your ex seem 40% better than they actually were. When you romanticize your ex, you're experiencing neurological withdrawal identical to cocaine addiction, not evidence of irreplaceable love. Learn the neuroscience behind the spiral and a 5-step reset to stop obsessive thoughts, rebuild identity, and move through grief without getting stuck in fantasy. Your brain exhibits memory distortion after loss by amplifying positive moments and suppressing negative patterns, creating an idealized version of your ex that's approximately 40% better than reality.