Because you're not missing the abuse — you're missing the person from the good phases, the future they promised, and the intensity your nervous system was trained on. Trauma bonds run on intermittent reward, so withdrawal from a harmful relationship can physically ache. Missing them is a symptom of the conditioning, not evidence you belong together.
Let the grief be grief without letting it write the story: 'I miss them AND they hurt me' can both be true. Re-read your own record on the hard nights. The ache fades on a body schedule, not a logic schedule — weeks and months, not arguments with yourself.