Fleeing My Insane Stepbrother After Rebirth

In my past life, I was brutally murdered, dying with only my stepbrother's cruel words ringing in my ears: "Just go die." Reborn, I did everything to avoid him, only to fall terminally ill. But he tracked me down, standing outside the flower shop where I worked every single day. I just don't get it. The stepbrother who despised me in my past life... why won't he let me go in this one?