Ghosting is seductive because it requires nothing from you in the moment: no hard conversation, no watching someone's face fall, no risk of an argument. It trades a single difficult five minutes for an ongoing, open-ended cruelty that the other person has to sit with indefinitely. That trade almost always favors the ghost and punishes the person left wondering what happened.
The psychological research on ambiguous loss is pretty consistent: uncertainty is harder to process than clear, painful information. A breakup, even a badly delivered one, gives the other person something to grieve and move past. Ghosting gives them nothing — just an absence they have to interpret entirely on their own, usually by blaming themselves.
There are limited exceptions. If a relationship has become unsafe, or you're dealing with someone who has a track record of manipulation or retaliation, disengaging without a formal conversation can be a legitimate safety decision, not cowardice. But for the overwhelming majority of ordinary breakups — the ones that are just sad, not dangerous — ghosting is the easy way out dressed up as self-protection.
Ending things directly, even clumsily, treats the other person as someone who deserves an answer. That's a low bar, but it's one worth clearing.