#redditstories #askreddit #aita #siblingrivalry #familydrama #emotionalwounds #toxicrelationships #jealousyissues Mark, the younger sibling, has never hidden his resentment—fueling years of tension and unexplained hostility. Despite efforts at peace, the narrator finds themselves constantly targeted by subtle jabs and passive aggression. But what caused this deep-seated animosity? Family loyalty is tested in this revealing tale of bitterness, rivalry, and hidden pain. redditstories,askreddit,reddit,aita,tifu,siblingrivalry,familyresentment,jealousyissues,toxicrelationships,familydrama,emotionalscars,redditfamilyconflict,brotherhatred,unresolvedtension,siblingjealousy,childhoodtrauma,familydynamics,conflictedrelationships,bittersiblingstory,emotionalbaggage