When a close relationship ends, there is almost always a moment people point to. The thing that was said. The thing that was done. The line that was finally crossed. But that moment is rarely the beginning. It is usually the end of a long process that started much earlier, with things much smaller. A marriage does not dissolve because of one infidelity or one cruel word. Most of the time it dissolves because of a thousand small disappointments that were never named. A friendship does not end because of one missed birthday. It ends because there were fifteen moments before that one where one person felt unseen and said nothing. This is what divorce lawyers, therapists, and researchers on long-term relationships find over and over again: by the time people arrive at the final rupture, the relationship has often been in decline for years. The ending was not sudden. It was slow, quiet, and built out of things that seemed too small to mention at the time. The wall that eventually separates two people is not raised in an afternoon. It is laid brick by brick, across months and years, until the day it is too high to see over.